Study on Finger Tip Model with Friction
SUZUKI Kenta; WATANABE Tetsuya; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers C, Volume：74, Number：746, First page：2549, Last page：2554, 2008
Generally a coefficient of friction of a human finger is very higher than a coefficient of friction of metal. The physical characteristics of a human finger are important in the work by hand. Therefore, the physical and numerical modeling of fingertip is useful for the design of various equipments, for example, a handrail of stairs, a robot hand, an operation simulator, and so on. In this study, "Coulomb friction", "absorption by fingerprint and sweat" and "elasticity of finger" are considered as the element of the friction characteristics. The aim of this study is to express the force by these characteristics as function model and to make the physical fingertip model. At first, the force by friction and absorption are measured, and the contact area between fingertip and board is calculated. Next, the function of friction force with respect to vertical force acting on the contact surface between fingertip and board is suggested. Finally, the actual finger model is made and the friction force is modeled to the function.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.74.2549, ISSN：0387-5024, CiNii Articles ID：110006967447, CiNii Books ID：AN00187463
Estimation of the Damping Ratio of the Coupled System Based on the Damping Ratios of Two 1-Dof Systems WATANABE Tetsuya; TOMODA Akinori; TANAKA Kihachiro
Journal of System Design and Dynamics,
Volume：2,
Number：4,
First page：1006,
Last page：1014, 2008
A number of different structures in industrial facilities are installed on supports. There is the case that the damage occurs by the coupled vibration. The response magnification is obtained from the modal natural frequency and the modal damping ratio of the coupled system in the seismic design. Therefore, the modal natural frequency and the modal damping ratio of the coupled system are required. The natural frequency and the damping ratio of the support and the structure are obtained during the initial design process or by a shaking test. However, the modal natural frequency and the modal damping ratio of the coupled system are not easily obtained. The modal natural frequency of the coupled system can be calculated from theoretical equation, but the modal damping ratio cannot be easily calculated. In the present study, an equation to calculate the modal damping ratio of the coupled system with classic damping is presented. In addition, a simple equation to calculate the modal damping ratio with a non-classic damping system is proposed. This equation is evaluated both theoretically and experimentally. The proposed equation is useful for obtaining the modal damping ratio without performing eigenvalue analysis or a shaking test.
The Japan Society of Mechanical Engineers, English
DOI：https://doi.org/10.1299/jsdd.2.1006DOI ID：10.1299/jsdd.2.1006,
ISSN：1881-3046,
eISSN：1881-3046,
CiNii Articles ID：130000099065 Dynamics of Lure Casting : Influence of Lure Weight
WATANABE Tetsuya; KASAI Yasuaki; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers C, Volume：74, Number：742, First page：1445, Last page：1453, 2008
Fly-fishing and lure fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of lure fishing, casting is the element which anglers must master in order to cast a lure at an appropriate position. Lure fishing constitutes various elements, for example, casting, reeling, hooking and landing, but the importance that casting holds is extremely large. This study uses experimental and computational analyses to investigate the dynamic behavior of lure casting. The casting process and the timing of the lure released are important for the proper presentation of lure. Moreover, the shape of a rod before the lure released is important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In this paper, the system of rod and lure is modeled, and the behavior of the rod and the flying distance of a lure are calculated. Especially, influence of lure weight is clarified.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.74.1445, ISSN：0387-5024, CiNii Articles ID：110006793581, CiNii Books ID：AN00187463
フライラインの力学（ダブルホールキャストの検討） 渡邉鉄也
Volume：74,
Number：740,
First page：798,
Last page：805, 2008
DOI：https://doi.org/10.1299/kikaic.74.798DOI ID：10.1299/kikaic.74.798,
ISSN：0387-5024,
CiNii Articles ID：80019509535 Response Reduction Map of Gap System Based on Energy
WATANABE Tetsuya; TAKEDA Tomoya; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers C, Volume：74, Number：738, First page：318, Last page：323, 2008
For the past several years, seismic isolation systems have been focused in the seismic design of industrial facilities. This paper deals with the response reduction effect by gap. Gap is expected to decrease the relative displacement by guide. The relative displacement between structure and support becomes larger at long period in the case of linear system. Therefore, the response reduction effect by gap should be utilized positively in the seismic design. However, the response magnification of acceleration is used in the seismic design. The acceleration becomes larger by collision. Therefore, the response reduction effect by gap is evaluated from the viewpoint of energy. The ratio between kinetic energy and input energy is utilized. In this paper, "Response Reduction Map" based on energy for long period gap system is suggested. This map shows the range that energy response ratio is less than the ratio of linear system. The response reduction map without complex non-linear time history calculation can easily obtain the proper parameters, such as natural period or gap size. At first in this study, the response reduction map by actual earthquake wave is shown. Next, the response reduction map by the artificial earthquake wave calculated from the design spectrum is shown.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.74.318, ISSN：0387-5024, CiNii Articles ID：110006623666, CiNii Books ID：AN00187463
指先の摩擦モデルに関する研究
鈴木健太; 渡邉鉄也; 田中基八郎
日本機械学会論文集C編, Volume：74, Number：746, First page：2549, Last page：2554, 2008
Generally a coefficient of friction of a human finger is very higher than a coefficient of friction of metal. The physical characteristics of a human finger are important in the work by hand. Therefore, the physical and numerical modeling of fingertip is useful for the design of various equipments, for example, a handrail of stairs, a robot hand, an operation simulator, and so on. In this study, "Coulomb friction", "absorption by fingerprint and sweat" and "elasticity of finger" are considered as the element of the friction characteristics. The aim of this study is to express the force by these characteristics as function model and to make the physical fingertip model. At first, the force by friction and absorption are measured, and the contact area between fingertip and board is calculated. Next, the function of friction force with respect to vertical force acting on the contact surface between fingertip and board is suggested. Finally, the actual finger model is made and the friction force is modeled to the function.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.74.2549, ISSN：0387-5024, CiNii Articles ID：110006967447, CiNii Books ID：AN00187463
ルアーキャスティングの力学 渡邉鉄也
精密工学会誌,
Volume：74,
Number：8,
First page：877,
Last page：882, 2008
Fly-fishing and lure fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of lure fishing, casting is the element which anglers must master in order to cast a lure at an appropriate position. Lure fishing constitutes various elements, for example, casting, reeling, hooking and landing, but the importance that casting holds is extremely large. This study uses experimental and computational analysis to investigate the dynamic behavior of lure casting. The casting process and the timing of the line leaves are important for the proper presentation of lure. Moreover, the shape of a rod before the lure released is important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In this paper, the system of rod and lure is modeled, and the behavior of the rod and the flying distance of a lure are calculated in the case that line tension is considered. The difference of the behavior and flying distance with line tension is investigated. And suitable timing that angler releases the line is clarified. Moreover, hang length of lure is investigated and proper length is obtained.
The Japan Society for Precision Engineering, Japanese
DOI：https://doi.org/10.2493/jjspe.74.877DOI ID：10.2493/jjspe.74.877,
ISSN：0912-0289,
CiNii Articles ID：110006865149,
CiNii Books ID：AN1003250X Estimation of the damping ratio of the coupled system based on the damping ratios of two 1-dof systems Tetsuya WATANABE; Akinori TOMODA; Kihachiro TANAKA
Journal of System Design and Dynamics,
Volume：2,
Number：4,
First page：1006,
Last page：1014, 2008
A number of different structures in industrial facilities are installed on supports. There is the case that the damage occurs by the coupled vibration. The response magnification is obtained from the modal natural frequency and the modal damping ratio of the coupled system in the seismic design. Therefore, the modal natural frequency and the modal damping ratio of the coupled system are required. The natural frequency and the damping ratio of the support and the structure are obtained during the initial design process or by a shaking test. However, the modal natural frequency and the modal damping ratio of the coupled system are not easily obtained. The modal natural frequency of the coupled system can be calculated from theoretical equation, but the modal damping ratio cannot be easily calculated. In the present study, an equation to calculate the modal damping ratio of the coupled system with classic damping is presented. In addition, a simple equation to calculate the modal damping ratio with a non-classic damping system is proposed. This equation is evaluated both theoretically and experimentally. The proposed equation is useful for obtaining the modal damping ratio without performing eigenvalue analysis or a shaking test.
The Japan Society of Mechanical Engineers, English
DOI：https://doi.org/10.1299/jsdd.2.1006DOI ID：10.1299/jsdd.2.1006,
ISSN：1881-3046,
eISSN：1881-3046,
CiNii Articles ID：130000099065 ルアーキャスティングの力学（ルアー重量の影響）
渡邉鉄也; 笠井泰明; 田中基八郎
日本機械学会論文集C編, Volume：74, Number：742, First page：1445, Last page：1453, 2008
Fly-fishing and lure fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of lure fishing, casting is the element which anglers must master in order to cast a lure at an appropriate position. Lure fishing constitutes various elements, for example, casting, reeling, hooking and landing, but the importance that casting holds is extremely large. This study uses experimental and computational analyses to investigate the dynamic behavior of lure casting. The casting process and the timing of the lure released are important for the proper presentation of lure. Moreover, the shape of a rod before the lure released is important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In this paper, the system of rod and lure is modeled, and the behavior of the rod and the flying distance of a lure are calculated. Especially, influence of lure weight is clarified.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.74.1445, ISSN：0387-5024, CiNii Articles ID：110006793581, CiNii Books ID：AN00187463
フライラインの力学（ダブルホールキャストの検討） 渡邉鉄也
日本機械学会論文集C編,
Volume：74,
Number：740,
First page：798,
Last page：805, 2008
DOI：https://doi.org/10.1299/kikaic.74.798DOI ID：10.1299/kikaic.74.798,
ISSN：0387-5024,
CiNii Articles ID：80019509535 エネルギに基づくがた系の応答低減マップ
渡邉鉄也; 武田知也; 田中基八郎
日本機械学会論文集C編, Volume：74, Number：738, First page：318, Last page：323, 2008
For the past several years, seismic isolation systems have been focused in the seismic design of industrial facilities. This paper deals with the response reduction effect by gap. Gap is expected to decrease the relative displacement by guide. The relative displacement between structure and support becomes larger at long period in the case of linear system. Therefore, the response reduction effect by gap should be utilized positively in the seismic design. However, the response magnification of acceleration is used in the seismic design. The acceleration becomes larger by collision. Therefore, the response reduction effect by gap is evaluated from the viewpoint of energy. The ratio between kinetic energy and input energy is utilized. In this paper, "Response Reduction Map" based on energy for long period gap system is suggested. This map shows the range that energy response ratio is less than the ratio of linear system. The response reduction map without complex non-linear time history calculation can easily obtain the proper parameters, such as natural period or gap size. At first in this study, the response reduction map by actual earthquake wave is shown. Next, the response reduction map by the artificial earthquake wave calculated from the design spectrum is shown.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.74.318, ISSN：0387-5024, CiNii Articles ID：110006623666, CiNii Books ID：AN00187463
新型機能性摩擦ダンパの開発に関する研究
渡邉鉄也
Number：5(18年度), First page：571, Last page：572, 2007
Dynamics of a Fly Line : Analysis Considering Arm Motion
WATANABE Tetsuya; ISHIDA Katsuhiro; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers. C, Volume：73, Number：733, First page：2531, Last page：2536, 2007
Lure fishing and fly-fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of fly-fishing, casting is the element which anglers must master in order to cast a fly, done so by using the weight of a line. This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-fishing constitutes various elements, but the importance that casting holds is extremely large. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model because a fly line is an object of flexible string. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In addition, measuring an angler performing movements with a flexible object such as a rod or a line is difficult. So establishing a method to measure the dynamic behavior precisely is also one of the purposes of this study. For the past study, motion of wrist and upper arm had been fixed to make a simple numerical model. However, upper arm, forearm and wrist move in the actual fishing field. In this paper, three input numerical model considering arm motion is established.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.73.2531, ISSN：0387-5024, CiNii Articles ID：110006403944, CiNii Books ID：AN00187463
Study on Friction Response Spectrum Under Long Period System
TOMODA Akinori; WATANABE Tetsuya; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers C, Volume：73, Number：730, First page：1699, Last page：1704, 2007
This study deals with seismic isolation design in industrial facilities. Design spectrum modified for long period structure is suggested. Response spectrum calculated by linear analysis using actual seismic waves is different from response spectrum of seismic design for the range of long period. In addition, friction isolator is expected to absorb seismic energy. This effect should be utilized positively in seismic design. However, seismic isolation effect depends on the friction characteristic of system. Therefore, adjustment of frictional force becomes very important. This paper shows Friction Response Spectrum for long period by the synthetic seismic wave using design spectrum. The Friction Response Spectrum is able to obtain the optimum frictional force of seismic isolation instead of non-linear analysis and estimate response magnification of long period system with friction. Moreover, equivalent damping ratio is estimated from Friction Response Spectrum for long period system. Equivalent damping ratio can easily calculate response of friction system.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.73.1699, ISSN：0387-5024, CiNii Articles ID：110006317489, CiNii Books ID：AN00187463
Dynamics of a Fly Line : Behavior of rebound WATANABE Tetsuya; TANAKA Kihachiro
Journal of the Japan Society of Precision Engineering,
Volume：73,
Number：5,
First page：600,
Last page：604, 2007
Lure fishing and fly-fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of fly-fishing, casting is the element which anglers must master in order to cast a fly, done so by using the weight of a line. This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-fishing constitutes various elements, but the importance that casting holds is extremely large. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model because a fly line is an object of flexible string. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In addition, measuring an angler performing movements with a flexible object such as a rod or a line is difficult. So establishing a method to measure the dynamic behavior precisely is also one of the purposes of this study. The rebound phenomenon occurs in the casting process. In this study, the casting experiment by a human and a machine were proceeded. The dynamic model of a rod and a line was made using multibody dynamics. It became clear that the vibration of a rod reduced by a rebound phenomenon.
The Japan Society for Precision Engineering, Japanese
DOI：https://doi.org/10.2493/jjspe.73.600DOI ID：10.2493/jjspe.73.600,
ISSN：0912-0289,
CiNii Articles ID：110006285641,
CiNii Books ID：AN1003250X Dynamics of a Fly Line : Effect of the Rebound(Mechanical Systems)
WATANABE Tetsuya; SEINO Ryuji; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers. C, Volume：73, Number：726, First page：399, Last page：405, 2007
Lure fishing and fly-fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of fly-fishing, casting is the element which anglers must master in order to cast a fly, done so by using the weight of a line. This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-fishing constitutes various elements, but the importance that casting holds is extremely large. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model because a fly line is an object of flexible string. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In addition, measuring an angler performing movements with a flexible object such as a rod or a line is difficult. So establishing a method to measure the dynamic behavior precisely is also one of the purposes of this study. The rebound phenomenon occurs in the casting process. In this paper, the effect of rebound is investigated analytically.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.73.399, ISSN：0387-5024, CiNii Articles ID：120001658774, CiNii Books ID：AN00187463
応答スペクトルにおける連成系等価減衰比の推定 渡邉鉄也
Volume：73,
Number：725,
First page：90,
Last page：97, 2007
DOI：https://doi.org/10.1299/kikaic.73.90DOI ID：10.1299/kikaic.73.90,
ISSN：0387-5024,
CiNii Articles ID：110006164394 新型機能性摩擦ダンパの開発に関する研究
渡邉鉄也
総合研究機構研究プロジェクト研究成果報告書, Number：5(18年度), First page：571, Last page：572, 2007
フライラインの力学（上腕･前腕･手首の運動を考慮した解析）
渡邉鉄也; 石田勝裕; 田中基八郎
日本機械学会論文集C編, Volume：73, Number：733, First page：2531, Last page：2536, 2007
Lure fishing and fly-fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of fly-fishing, casting is the element which anglers must master in order to cast a fly, done so by using the weight of a line. This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-fishing constitutes various elements, but the importance that casting holds is extremely large. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model because a fly line is an object of flexible string. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In addition, measuring an angler performing movements with a flexible object such as a rod or a line is difficult. So establishing a method to measure the dynamic behavior precisely is also one of the purposes of this study. For the past study, motion of wrist and upper arm had been fixed to make a simple numerical model. However, upper arm, forearm and wrist move in the actual fishing field. In this paper, three input numerical model considering arm motion is established.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.73.2531, ISSN：0387-5024, CiNii Articles ID：110006403944, CiNii Books ID：AN00187463
長周期摩擦系応答スペクトルに関する研究
鞆田顕章; 渡邉鉄也; 田中基八郎
日本機械学会論文集C編, Volume：73, Number：730, First page：1699, Last page：1704, 2007
This study deals with seismic isolation design in industrial facilities. Design spectrum modified for long period structure is suggested. Response spectrum calculated by linear analysis using actual seismic waves is different from response spectrum of seismic design for the range of long period. In addition, friction isolator is expected to absorb seismic energy. This effect should be utilized positively in seismic design. However, seismic isolation effect depends on the friction characteristic of system. Therefore, adjustment of frictional force becomes very important. This paper shows Friction Response Spectrum for long period by the synthetic seismic wave using design spectrum. The Friction Response Spectrum is able to obtain the optimum frictional force of seismic isolation instead of non-linear analysis and estimate response magnification of long period system with friction. Moreover, equivalent damping ratio is estimated from Friction Response Spectrum for long period system. Equivalent damping ratio can easily calculate response of friction system.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.73.1699, ISSN：0387-5024, CiNii Articles ID：110006317489, CiNii Books ID：AN00187463
フライラインの力学（リバウンド現象） 渡邉鉄也; 田中基八郎
精密工学会誌,
Volume：73,
Number：5,
First page：600,
Last page：604, 2007
Lure fishing and fly-fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of fly-fishing, casting is the element which anglers must master in order to cast a fly, done so by using the weight of a line. This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-fishing constitutes various elements, but the importance that casting holds is extremely large. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model because a fly line is an object of flexible string. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In addition, measuring an angler performing movements with a flexible object such as a rod or a line is difficult. So establishing a method to measure the dynamic behavior precisely is also one of the purposes of this study. The rebound phenomenon occurs in the casting process. In this study, the casting experiment by a human and a machine were proceeded. The dynamic model of a rod and a line was made using multibody dynamics. It became clear that the vibration of a rod reduced by a rebound phenomenon.
The Japan Society for Precision Engineering, Japanese
DOI：https://doi.org/10.2493/jjspe.73.600DOI ID：10.2493/jjspe.73.600,
ISSN：0912-0289,
CiNii Articles ID：110006285641,
CiNii Books ID：AN1003250X フライラインの力学（リバウンドを考慮した解析）
渡邉鉄也; 清野竜二; 田中基八郎
日本機械学会論文集Ｃ編, Volume：73, Number：726, First page：399, Last page：405, 2007
Lure fishing and fly-fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of fly-fishing, casting is the element which anglers must master in order to cast a fly, done so by using the weight of a line. This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-fishing constitutes various elements, but the importance that casting holds is extremely large. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model because a fly line is an object of flexible string. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In addition, measuring an angler performing movements with a flexible object such as a rod or a line is difficult. So establishing a method to measure the dynamic behavior precisely is also one of the purposes of this study. The rebound phenomenon occurs in the casting process. In this paper, the effect of rebound is investigated analytically.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.73.399, ISSN：0387-5024, CiNii Articles ID：120001658774, CiNii Books ID：AN00187463
応答スペクトルにおける連成系等価減衰比の推定
渡邉鉄也
日本機械学会論文集C編, Volume：73, Number：725, First page：90, Last page：97, 2007
Many structures are installed on supports in industrial facilities. The damage by amplitude increases with the coupled vibration is shown. The response magnification is obtained from natural frequency and damping ratio of the coupled system in the seismic design. Therefore, the natural frequency and damping ratio of the coupled system are required. The natural frequency and damping ratio of support and structure are obtained in initial design or vibration test. However, the natural frequency and the damping ratio of the coupled system are not easily obtained. The natural frequency of the coupled system can be calculated from theoretical equation, but the damping ratio cannot be easily calculated. In this study, the equation to calculate the damping ratio of the coupled system with Rayleigh damping is shown. The equivalent damping ratio without Rayleigh damping is estimated.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.73.90, ISSN：0387-5024, CiNii Articles ID：110006164394, CiNii Books ID：AN00187463
Response Reduction Map Under Long Period Friction System
WATANABE Tetsuya; TOMODA Akinori; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers C, Volume：72, Number：722, First page：3221, Last page：3226, 2006
This paper deals with response reduction effect by friction behavior. Friction is expected to absorb seismic energy. This effect should be utilized positively in seismic design. For past several years, seismic isolation structures have been focused in seismic design of industrial facilities. Seismic isolation effect is controlled by the friction characteristic exists in friction support. Therefore, adjustment of frictional force becomes a very important. In this paper, "Response Reduction Map" for long period friction system is suggested. This map shows the range that response magnification is less than 1 and less than the response of linear system. The response reduction map without complex non-linear time history response calculation can easily obtain the response magnification. At first in this study, the response reduction map by actual earthquake wave is shown. Next, the response reduction map by the artificial earthquake wave calculated using design spectrum is shown.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.72.3221, ISSN：0387-5024, CiNii Articles ID：110004837612, CiNii Books ID：AN00187463
フライラインの力学 : リバウンド現象<論文>
渡邉 鉄也; 田中 基八郎
Volume：39, First page：1, Last page：8, 2006
柔軟ひも状構造物を用いたキャスティングシステムに関する研究
渡邉 鉄也
Number：4(17年度), 2006
長周期摩擦系における応答低減マップ
渡邉 鉄也; 鞆田 顕章; 田中 基八郎
日本機械学会論文集Ｃ編, Volume：72, Number：722, First page：3221, Last page：3226, 2006
This paper deals with response reduction effect by friction behavior. Friction is expected to absorb seismic energy. This effect should be utilized positively in seismic design. For past several years, seismic isolation structures have been focused in seismic design of industrial facilities. Seismic isolation effect is controlled by the friction characteristic exists in friction support. Therefore, adjustment of frictional force becomes a very important. In this paper, "Response Reduction Map" for long period friction system is suggested. This map shows the range that response magnification is less than 1 and less than the response of linear system. The response reduction map without complex non-linear time history response calculation can easily obtain the response magnification. At first in this study, the response reduction map by actual earthquake wave is shown. Next, the response reduction map by the artificial earthquake wave calculated using design spectrum is shown.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.72.3221, ISSN：0387-5024, CiNii Articles ID：110004837612, CiNii Books ID：AN00187463
フライラインの力学 : リバウンド現象<論文>渡邉 鉄也; 田中 基八郎
埼玉大学紀要, 工学部, 第1部論文集,
Volume：39,
First page：1,
Last page：8, 2006
This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-casting is one of the most significant issues in fly-fishing. In order to cast a lightweight fly, the weight of a fly line is utilized. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. The rebound phenomenon occurs in the casting process. In this paper, the effect of rebound is investigated experimentally.
Japanese
ISSN：1880-4446,
CiNii Articles ID：120001370408 柔軟ひも状構造物を用いたキャスティングシステムに関する研究
渡邉 鉄也
総合研究機構研究プロジェクト研究成果報告書, Number：4(17年度), 2006
柔軟ひも状構造物を用いたキャスティングシステム
渡邉 鉄也
Number：16年度, 2005
柔軟ひも状構造物を用いたキャスティングシステム
渡邉 鉄也
総合研究機構研究プロジェクト研究成果報告書, Number：16年度, 2005
Experimental study on ball screw type magnetic friction damper: Semiactive control using electromagnet T Watanabe; K Suzuki; F Iiyama; H Sodeyama
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME,
Volume：126,
Number：1,
First page：110,
Last page：114, Feb. 2004
This report deals with the fundamental behavior of friction dampers for piping systems installed in industrial facilities. Energy dissipating effect depends on sliding displacement and friction force. If the sliding motion increases, the effect of energy dissipation is expected to rise. In this report, a ball screw-type magnetic friction damper is proposed to adapt on piping systems. In order to increase the frictional sliding, this damper converts an axial motion to a rotating motion by a ball screw. Frictional behavior occurs between a rotation disk and a fixed disk on the frame of damper Friction force depends on the permanent magnets located on the fixed disk. The fundamental characteristics such as load-displacement curves, damping force at the ball bearing and inertia force of the rotation disk are obtained by experiments and a calculation model is made from the experimental data. The calculated responses are, then, compared with the results from the experiment. The calculation model is applied to a one-degree-of-freedom-system in order to investigate the response reduction effect of the system. An electromagnet is applied on the damper instead of the permanent. magnet to control friction force and the controlled behavior is evaluated.
ASME-AMER SOC MECHANICAL ENG, English
DOI：https://doi.org/10.1115/1.1634585DOI ID：10.1115/1.1634585,
ISSN：0094-9930,
CiNii Articles ID：80016528518,
Web of Science ID：WOS:000220037000016 Dynamics of a Fly Line : Modelling a Rod and a Line-with Fixed Wrist
WATANABE Tetsuya; TANAKA Kihachiro; HOSOYA Naoki
Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：70, Number：690, First page：516, Last page：522, 2004
This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-casting is one of the most significant issues in fly-fishing. In order to cast a lightweight fly, the weight of a fly line is utilized. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. In this paper, a rod and a line are modelled and calculated in the case of wrist fixed.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.70.516, ISSN：0387-5024, CiNii Articles ID：110006263773, CiNii Books ID：AN00187463
Dynamics of a Fly Line : Casting Experiment with Fixed Wrist
WATANABE Tetsuya; TANAKA Kihachiro; HOSOYA Naoki
Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：70, Number：690, First page：508, Last page：515, 2004
This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-casting is one of the most significant issues in fly-fishing. In order to cast a lightweight fly, the weight of a fly line is utilized. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. In this paper, the fly-casting process is investigated experimentally in the case of wrist fixed.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.70.508, ISSN：0387-5024, CiNii Articles ID：110006263772, CiNii Books ID：AN00187463
フライラインの力学 : 手首固定条件におけるロッド・ラインのモデル化 渡邉 鉄也; 田中 基八郎; 細矢 直基
日本機械学會論文集. C編,
Volume：70,
Number：690,
First page：516,
Last page：522, 2004
DOI：https://doi.org/10.1299/kikaic.70.516DOI ID：10.1299/kikaic.70.516,
ISSN：0387-5024,
CiNii Articles ID：110006263773 フライラインの力学 : 手首固定条件におけるキャスティング実験 渡邉 鉄也; 田中 基八郎; 細矢 直基
日本機械学會論文集. C編,
Volume：70,
Number：690,
First page：508,
Last page：515, 2004
DOI：https://doi.org/10.1299/kikaic.70.508DOI ID：10.1299/kikaic.70.508,
ISSN：0387-5024,
CiNii Articles ID：110006263772 Dynamics of Fly Line : Modelling and Analysis
WATANABE Tetsuya; TANAKA Kihachiro
Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：69, Number：680, First page：1065, Last page：1071, 2003
This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-casting is one of the most significant issues in fly-fishing, In order to cast a lightweight fly, the weight of a fly line is utilized. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. In this paper, the fly-casting process is investigated experimentally. In addition, the system of a fly line and a rod is modeled and calculated.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.69.1065, ISSN：0387-5024, CiNii Articles ID：110002378961, CiNii Books ID：AN00187463
フライラインの力学 : モデル化および解析(機械力学,計測,自動制御) 渡邉 鉄也; 田中 基八郎
日本機械学會論文集. C編,
Volume：69,
Number：680,
First page：1065,
Last page：1071, 2003
DOI：https://doi.org/10.1299/kikaic.69.1065DOI ID：10.1299/kikaic.69.1065,
ISSN：0387-5024,
CiNii Articles ID：110002378961 :SENSITIVITY TO INTERMITTENT VIBRATIONS AT FINGERTIPS YASUGI Ko; TANAKA Kihachiro; WATANABE Tetsuya; HOSOYA Naoki; SATO Taichi
Transactions of Japan Society of Kansei Engineering,
Volume：2,
Number：2,
First page：73,
Last page：80, 2002
A human being can feel signals with five senses such as vision, hearing, sense of touch, sense of smell, and taste. If we rely on vision and hearing, we become hardly to understand signals, in case that information variety or quantity is increased. As a message measure that such a case can get complementary, the sense of touch is thought about. In this paper, vibration signals are investigated. Vibration signal is a vibration we use with special purposes or intentions. Vibration signal can transmit information to a person through the sense of touch. Vibrators of portable phones are one kind of examples. They tell us only arrival of the call. We can not discriminate who call us. If we are able to make various types of vibration signals, they can help the sense of sight and hearing. The purpose of this study is to investigate on human sensitivity of vibration frequency, vibration envelope pattern and of parts of body that receive signals, and to propose the most suitable vibration signal for information.
Japan Society of Kansei Engineering, Japanese
DOI：https://doi.org/10.5057/jjske2001.2.2_73DOI ID：10.5057/jjske2001.2.2_73,
ISSN：1346-1958,
CiNii Articles ID：40005667944,
CiNii Books ID：AA12117678 :EXPRESSION AND ELECTROMYOGRAM WATANABE Tetsuya; ITO Junji; TANAKA Kihachiro; HOSOYA Naoki
Transactions of Japan Society of Kansei Engineering,
Volume：2,
Number：2,
First page：43,
Last page：48, 2002
A human being laughs in every day life when happy, and a facial expression changes unconsciously. It is thought that the facial expression has close relation to feelings and Kansei. The facial expression is more intelligibly than the expression by word, and can convey a delicate nuance when introducing feelings. Intention communication with a different foreigner is possible by a facial expression and a gesture. In this way, the role that a facial expression serves as by communication is very big. The aim of this study is to control a mind state by the intentionally modified facial expression. The final aim is the application to a field of the medical welfare. In this study, measuring the behavior of each muscle of a face using electromyogram in order to evaluate the expression quantitatively elucidates the mechanism of a facial expression. Six facial expressions is paid attention. When a human being made a facial expression intentionally, it is thought that a mind state changes by the facial expression. For example, it is said that a mind state is stable unconsciously when making a smile intentionally. On the other hand, it is thought that a mind state becomes unstable when a partner makes a facial expression of anger. In this way it is thought that a mind state is closely related to a facial expression, but there are many subjects that have not been elucidated. So the relation of a facial expression and a mind state is cleared from bio-information such as electromyogram or brain waves as an engineering approach and will be applied to the medical welfare.
Japan Society of Kansei Engineering, Japanese
DOI：https://doi.org/10.5057/jjske2001.2.2_43DOI ID：10.5057/jjske2001.2.2_43,
ISSN：1346-1958,
CiNii Articles ID：40005667940,
CiNii Books ID：AA12117678 サイン振動の検討（断続振動に対する指先の感度） 安木興; 田中基八郎; 渡邉鉄也; 細矢直基; 佐藤太一
感性工学研究論文集,
Volume：2,
Number：2,
First page：73,
Last page：80, 2002
A human being can feel signals with five senses such as vision, hearing, sense of touch, sense of smell, and taste. If we rely on vision and hearing, we become hardly to understand signals, in case that information variety or quantity is increased. As a message measure that such a case can get complementary, the sense of touch is thought about. In this paper, vibration signals are investigated. Vibration signal is a vibration we use with special purposes or intentions. Vibration signal can transmit information to a person through the sense of touch. Vibrators of portable phones are one kind of examples. They tell us only arrival of the call. We can not discriminate who call us. If we are able to make various types of vibration signals, they can help the sense of sight and hearing. The purpose of this study is to investigate on human sensitivity of vibration frequency, vibration envelope pattern and of parts of body that receive signals, and to propose the most suitable vibration signal for information.
Japan Society of Kansei Engineering, Japanese
DOI：https://doi.org/10.5057/jjske2001.2.2_73DOI ID：10.5057/jjske2001.2.2_73,
ISSN：1346-1958,
CiNii Articles ID：40005667944,
CiNii Books ID：AA12117678 表情による精神状態のコントロール（表情と筋電） 渡邉鉄也; 伊藤淳二; 田中基八郎; 細矢直基
感性工学研究論文集,
Volume：2,
Number：2,
First page：43,
Last page：48, 2002
A human being laughs in every day life when happy, and a facial expression changes unconsciously. It is thought that the facial expression has close relation to feelings and Kansei. The facial expression is more intelligibly than the expression by word, and can convey a delicate nuance when introducing feelings. Intention communication with a different foreigner is possible by a facial expression and a gesture. In this way, the role that a facial expression serves as by communication is very big. The aim of this study is to control a mind state by the intentionally modified facial expression. The final aim is the application to a field of the medical welfare. In this study, measuring the behavior of each muscle of a face using electromyogram in order to evaluate the expression quantitatively elucidates the mechanism of a facial expression. Six facial expressions is paid attention. When a human being made a facial expression intentionally, it is thought that a mind state changes by the facial expression. For example, it is said that a mind state is stable unconsciously when making a smile intentionally. On the other hand, it is thought that a mind state becomes unstable when a partner makes a facial expression of anger. In this way it is thought that a mind state is closely related to a facial expression, but there are many subjects that have not been elucidated. So the relation of a facial expression and a mind state is cleared from bio-information such as electromyogram or brain waves as an engineering approach and will be applied to the medical welfare.
Japan Society of Kansei Engineering, Japanese
DOI：https://doi.org/10.5057/jjske2001.2.2_43DOI ID：10.5057/jjske2001.2.2_43,
ISSN：1346-1958,
CiNii Articles ID：40005667940,
CiNii Books ID：AA12117678 Experimental Study on Ball Screw Type Magnetic Friction Damper
WATANABE Tetsuya; SUZUKI Kohei; IIYAMA Fumiya; SODEYAMA Hiroshi
Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：67, Number：659, First page：2136, Last page：2142, 2001
The dynamic characteristics of piping system installed in industrial facilities have to be recognized as one of the significant issues in economic and safety design consideration. Piping systems are generally connected to supporting structures at several points by means of devices such as guides, spring hangers, hydraulic or mechanical snubbers and certain energy absorbers. When friction damper attracts attention, the amount of energy dissipation at contact surface is restricted, because the maximum displacement of sliding motion is limited by the clearance of the equipment. In order to increase the amount of energy dissipation, the ball screw type magnetic friction damper is proposed. This damper is expected to increase the energy dissipation by converting one directional motion to rotating motion by ball screw. In this work, the fundamental characteristics of proposed damper are clarified. The numerical model is made considering parameters obtained from testing, and the results from simulation are compared with the results from testing.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.67.2136, ISSN：0387-5024, CiNii Articles ID：110002386265, CiNii Books ID：AN00187463
回転型磁気摩擦ダンパの基本特性に関する研究
渡邉 鉄也; 鈴木 浩平; 飯山 文也; 袖山 博
日本機械学会論文集，C編, Volume：67, Number：659, First page：2136, Last page：2142, 2001
The dynamic characteristics of piping system installed in industrial facilities have to be recognized as one of the significant issues in economic and safety design consideration. Piping systems are generally connected to supporting structures at several points by means of devices such as guides, spring hangers, hydraulic or mechanical snubbers and certain energy absorbers. When friction damper attracts attention, the amount of energy dissipation at contact surface is restricted, because the maximum displacement of sliding motion is limited by the clearance of the equipment. In order to increase the amount of energy dissipation, the ball screw type magnetic friction damper is proposed. This damper is expected to increase the energy dissipation by converting one directional motion to rotating motion by ball screw. In this work, the fundamental characteristics of proposed damper are clarified. The numerical model is made considering parameters obtained from testing, and the results from simulation are compared with the results from testing.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.67.2136, ISSN：0387-5024, CiNii Articles ID：110002386265, CiNii Books ID：AN00187463
摩擦系応答スペクトルを用いた配管系の等価減衰比推定法 渡邉 鉄也; 鈴木 浩平
Volume：66,
Number：642,
First page：441,
Last page：446, 2000
DOI：https://doi.org/10.1299/kikaic.66.441DOI ID：10.1299/kikaic.66.441,
ISSN：0387-5024,
CiNii Articles ID：110002382935 摩擦系応答スペクトルを用いた配管系の等価減衰比推定法 渡邉 鉄也; 鈴木 浩平
日本機械学会論文集，C編,
Volume：66,
Number：642,
First page：441,
Last page：446, 2000
DOI：https://doi.org/10.1299/kikaic.66.441DOI ID：10.1299/kikaic.66.441,
ISSN：0387-5024,
CiNii Articles ID：110002382935 Seismic Response Analysis of Piping System with Friction Support (Maximum Response Estimation Using Frictional Response Spectrum)
WATANABE Tetsuya; SUZUKI Kohei
Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：64, Number：619, First page：825, Last page：830, 1998
This report deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities such as petro-chemical, oil refinery and nuclear power plants. Piping is generally put on the supporting structures. Therefore, frictional vibration occurs between piping and supporting system during seismic excitation. Special attention is focused on this nonlinear frictional dynamic responses of piping systems due to frictional vibration appearing among piping and supporting devices. Two mock-up piping structure models are excited by large scale shaking table. FEM models are made from the mock-up piping of shaking test, and modal parameters of linear system are calculated. The time history responses are calculated by nonlinear response analysis using calculated modal parameters. Friction response spectrum are proposed to calculate the maximum responses having frictional behavior. The maximum responses calculated by friction response spectrum are compared with the maximum responses obtained by experiment.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.64.825, ISSN：0387-5024, CiNii Articles ID：110002383615, CiNii Books ID：AN00187463
Seismic Responses of Piping System with Friction Sliding on a Plane
WATANABE Tetsuya; SUZUKI Kohei
Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：64, Number：617, First page：64, Last page：69, 1998
This report deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities. Piping is generally set up on the supporting structures, therefore when shaking motion is given, frictional vibration should take place between the piping and the supports, and two dimensional sliding motion occurs. A three dimensional mock-up piping and supporting structure model is excited by large scale (15m×15m) shaking table. First mode and second mode of FEM piping model are calculated independently, and maximum responses and dissipated energy considering the frictional behavior are compared with the responses obtained by experiment. The process to calculate the response of friction system is evaluated.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.64.64, ISSN：0387-5024, CiNii Articles ID：110002383506, CiNii Books ID：AN00187463
Modal Seismic Response Analysis of 3D-Piping System on Friction Support
WATANABE Tetsuya; SUZUKI Kohei
JSME International Journal Ser. C Mechanical Systems, Machine Elements and Manufacturing, Volume：41, Number：3, First page：662, Last page：667, 1998
This paper deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities.In industries, Piping systems are generally supported on hangers, rod restraints, friction supports etc.A three dimensional mock-up piping supported on rod restraints and friction support is excited by large scale(15m×15m)shaking table.At the friction support, two dimensional nonlinear sliding motion is observed between the piping and friction support due to simulated earthquake excitation.Free vibration analysis is carried out using FE model of the piping system.A modal analysis procedure is evolved to calculate the responses of the piping supported on friction support.Maximum responses and dissipated energy at the friction support obtained analytically are compared with those obtained in experiments.A good agreement is observed between the experiment results and those obtained analytically.
The Japan Society of Mechanical Engineers, English
DOI ID：10.1299/jsmec.41.662, ISSN：1344-7653, CiNii Articles ID：110004155924, CiNii Books ID：AA11179487
摩擦支持配管系の地震応答解析（摩擦系応答スペクトルを用いた最大応答の推定） 渡邉鉄也; 鈴木浩平
日本機械学会論文集，C編,
Volume：64,
Number：619,
First page：825,
Last page：830, 1998
DOI：https://doi.org/10.1299/kikaic.64.825DOI ID：10.1299/kikaic.64.825,
ISSN：0387-5024,
CiNii Articles ID：110002383615 面内しゅう動を有する摩擦支持配管系の地震応答
渡邉鉄也; 鈴木浩平
日本機械学会論文集，C編, Volume：64, Number：617, First page：64, Last page：69, 1998
This report deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities. Piping is generally set up on the supporting structures, therefore when shaking motion is given, frictional vibration should take place between the piping and the supports, and two dimensional sliding motion occurs. A three dimensional mock-up piping and supporting structure model is excited by large scale (15m×15m) shaking table. First mode and second mode of FEM piping model are calculated independently, and maximum responses and dissipated energy considering the frictional behavior are compared with the responses obtained by experiment. The process to calculate the response of friction system is evaluated.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.64.64, ISSN：0387-5024, CiNii Articles ID：110002383506, CiNii Books ID：AN00187463
Modal Seismic Response Analysis of 3D-Piping System on Friction Support
Watanabe,T; Suzuki,K
International Journal, Ser. C, Volume：41, Number：3, First page：662, Last page：667, 1998
This paper deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities.In industries, Piping systems are generally supported on hangers, rod restraints, friction supports etc.A three dimensional mock-up piping supported on rod restraints and friction support is excited by large scale(15m×15m)shaking table.At the friction support, two dimensional nonlinear sliding motion is observed between the piping and friction support due to simulated earthquake excitation.Free vibration analysis is carried out using FE model of the piping system.A modal analysis procedure is evolved to calculate the responses of the piping supported on friction support.Maximum responses and dissipated energy at the friction support obtained analytically are compared with those obtained in experiments.A good agreement is observed between the experiment results and those obtained analytically.
The Japan Society of Mechanical Engineers, English
DOI ID：10.1299/jsmec.41.662, ISSN：1344-7653, CiNii Articles ID：110004155924, CiNii Books ID：AA11179487
Seismic Responses of Plant Piping System Having Friction and Vibro-impact Characteristics
WATANABE Tetsuya; SUZUKI Kohei; MITSUMORI Tomohiko; SHIMIZU Nobuyuki
Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：62, Number：595, First page：873, Last page：878, 1996
This report deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities such as petro chemical, oil refinery and nuclear power plants. Special attention is focussed on the nonlinear dynamic responses of piping systems due to frictional and collisional interaction among piping and supporting devices. A spatial mock-up piping and supporting structure model wherein piping is of 30 m length and 216.3 mm diameter is excited by a large-scale (15m×15m) shaking table. Frequency response function and the loading-response relationship in the form of a hysteresis loop under several excitation levels are obtained. The energy dissipated by friction and collision is evaluated, and the response reduction effect due to friction and collision is quantized and evaluated in terms of "response reduction factor" and linearized damping ratio. Numerical analysis using a FEM model is also performed. Calculated of maximum displacement responses of piping are compared with those from the vibration test.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.62.873, ISSN：0387-5024, CiNii Articles ID：110002382525, CiNii Books ID：AN00187463
支持部にがた・摩擦を有するプラント配管系の地震応答
渡邉鉄也; 鈴木浩平; 三森友彦; 清水信行
日本機械学会論文集C編, Volume：62, Number：595, First page：873, Last page：878, 1996
This report deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities such as petro chemical, oil refinery and nuclear power plants. Special attention is focussed on the nonlinear dynamic responses of piping systems due to frictional and collisional interaction among piping and supporting devices. A spatial mock-up piping and supporting structure model wherein piping is of 30 m length and 216.3 mm diameter is excited by a large-scale (15m×15m) shaking table. Frequency response function and the loading-response relationship in the form of a hysteresis loop under several excitation levels are obtained. The energy dissipated by friction and collision is evaluated, and the response reduction effect due to friction and collision is quantized and evaluated in terms of "response reduction factor" and linearized damping ratio. Numerical analysis using a FEM model is also performed. Calculated of maximum displacement responses of piping are compared with those from the vibration test.
The Japan Society of Mechanical Engineers, Japanese
DOI ID：10.1299/kikaic.62.873, ISSN：0387-5024, CiNii Articles ID：110002382525, CiNii Books ID：AN00187463
EXPERIMENTAL-STUDY ON SEISMIC RESPONSES OF PIPING SYSTEMS WITH FRICTION .1. LARGE-SCALE SHAKING TABLE VIBRATION TEST
K SUZUKI; T WATANABE; T MITSUMORI; N SHIMIZU; H KOBAYASHI; N OGAWA
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, Volume：117, Number：3, First page：245, Last page：249, Aug. 1995
This report deals with the experimental study of seismic response behavior of piping systems in industrial facilities such as petrochemical, oil refinery, and nuclear plants. Special attention is focused on the nonlinear dynamic response of piping systems due to frictional vibration appearing in piping and supporting devices. A three-dimensional mock-up piping and supporting structure model wherein piping is of 30-m length and 200-mm diameter is excited by a large-scale (15 m X 15 m) shaking table belonging to the National Research Institute for Earth Science and Disaster Prevention in Tsukuba, Ibaraki. Power spectra of the response vibration and the loading response relationship in the form of a hysteresis loop under several loading conditions are obtained. The response reduction effect caused by frictional vibration is evaluated and demonstrated in terms of ''response reduction factor.''
ASME-AMER SOC MECHANICAL ENG, English
ISSN：0094-9930, Web of Science ID：WOS:A1995RV56600007
摩擦サポートを有するプラント配管系の振動実験 渡邉鉄也; 三森友彦; 鈴木浩平; 清水信行; 小川信行; 箕輪親宏
Volume：58,
Number：552,
First page：2341,
Last page：2347, 1992
DOI：https://doi.org/10.1299/kikaic.58.2341DOI ID：10.1299/kikaic.58.2341,
ISSN：0387-5024,
CiNii Articles ID：110002392734 摩擦サポートを有するプラント配管系の振動実験 渡邉鉄也; 三森友彦; 鈴木浩平; 清水信行; 小川信行; 箕輪親宏
日本機械学会論文集C編,
Volume：58,
Number：552,
First page：2341,
Last page：2347, 1992
DOI：https://doi.org/10.1299/kikaic.58.2341DOI ID：10.1299/kikaic.58.2341,
ISSN：0387-5024,
CiNii Articles ID：110002392734
