Dynamic nonlinear behavior of transported flexible body supported by rollers

滚轮支撑柔性输送体的动态非线性行为

• 批准号: 18560235
• 负责人: KOBAYASHI Nobuyuki
• 金额: $ 2.4万
• 依托单位: Aoyama Gakuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560235/
• 关键词: Mechanical Dynamics; Moving flexible body; Contact problem; Self-excited vibration; Feeder

In this study, we focused the dynamic behavior of a flexible beam when it is transported by rollers with elastic support. The modeling methodology for the numerical simulation of a transported flexible beam that passes thorough the couple of rollers with elastic support is proposed using both the finite segment method and absolute nodal coordinate formulation.The simulation results ensures that the proposed modeling method attains the important dynamic features in the parametric instability in the beam such as continuous change in the beam length with time and the rapid increase in the transverse vibration when the reciprocating frequency of the beam is closed to twice of natural frequency. The effect of the reciprocating amplitude and frequency, which are the important parameters in designs of the concerned applications, are also discussed. The larger reciprocating amplitude and the closer to the twice-natural frequency lead to more significant increase in the transverse vibration.

在这项研究中，我们集中在一个柔性梁的动态行为时，它是由辊输送与弹性支承。采用有限段法和绝对节点坐标法对柔性梁通过弹性支承辊对的过程进行了数值模拟。模拟结果表明，所提出的建模方法能够反映梁的参数失稳的重要动力学特征，如梁长随时间的连续变化和梁的刚度随时间的快速增加等梁的往复频率接近于固有频率的两倍时的横向振动。同时还讨论了往复运动的振幅和频率对振动特性的影响，这两个参数在相关应用的设计中是重要的。往复振幅越大，越接近二阶固有频率，横向振动的增加越显著。

项目成果

Rocking and Slip Coupled Seismic Response of Large and Flexible Cylindrical Storage Tanks

大型柔性圆柱形储罐的摇摆和滑移耦合地震响应

• 发表时间: 2007
• 作者: Kobayashi N.;Seo N. and Watanabe M.
• 通讯作者: Seo N. and Watanabe M.

Seismic Response of Tall and Flexible Structures on Ground Including Contact Problem

地面高层柔性结构的地震响应，包括接触问题

• 发表时间: 2006
• 作者: Matsumoto T.;Kobayashi N.;ZhangY.and Pfeiffer F.
• 通讯作者: ZhangY.and Pfeiffer F.

Seismic Response of Tall and Flexible Structure on Ground Including Contact Problem

地面高层柔性结构的地震响应，包括接触问题

• 发表时间: 2007
• 期刊: Journal of System Dynamics and Design Vol.1,No.3
• 作者: Matsumoto T.;Kobayashi N.;Zhang Y.and Pfeiffer F
• 通讯作者: Zhang Y.and Pfeiffer F

Parametric Instability of Flexible Beam under Periodic Movement

周期运动下柔性梁的参数失稳

• 发表时间: 2008
• 作者: Yoshida D.;Kobayashi N;Watanabe M. and SugawaraY.
• 通讯作者: Watanabe M. and SugawaraY.

Dynamic Behavior of a Flexible Beam Passed through Rollers with Elastic Support

穿过弹性支撑滚子的柔性梁的动态行为

• 发表时间: 2006
• 作者: Aida K.;Zhang Y. and Kobayashi N.
• 通讯作者: Zhang Y. and Kobayashi N.