| 大变形刚-柔耦合系统仿真和实验研究 |
| |
| 引用本文： | 刘锦阳,邹凡,余征跃. 大变形刚-柔耦合系统仿真和实验研究[J]. 振动工程学报, 2011, 24(6) |
| |
| 作者姓名： | 刘锦阳 邹凡 余征跃 |
| |
| 作者单位： | 上海交通大学工程力学系,上海,200240 |
| |
| 基金项目： | 国家自然科学基金资助项目(10872126); 教育部博士点基金资助项目(20100073110007) |
| |
| 摘 要： | 通过气浮台和梁系统的刚-柔耦合动力学实验研究完备的几何非线性模型和一次近似模型在大变形情况下的适用性.首先从Green应变与位移的非线性关系式出发,用绝对节点坐标法建立了弹性梁的完备的几何非线性动力学模型,并考虑结构阻尼建立了气浮台和梁系统的刚-柔耦合动力学方程,然后利用非接触式的运动测量仪和应变仪测量特征点的速度、角速度和应变,通过理论和实验结果的数值对比验证了几何非线性动力学模型的正确性,在此基础上进一步分析基于小变形的一次近似模型的适用性.
|
| 关 键 词： | 大变形 刚-柔耦合动力学 几何非线性 实验 |
Simulation and experimental study for rigid-flexible coupling dynamic system with large deformation |
| |
| LIU Jin-yang , ZOU Fan , YU Zheng-yue. Simulation and experimental study for rigid-flexible coupling dynamic system with large deformation[J]. Journal of Vibration Engineering, 2011, 24(6) |
| |
| Authors: | LIU Jin-yang ZOU Fan YU Zheng-yue |
| |
| Affiliation: | LIU Jin-yang,ZOU Fan,YU Zheng-yue(Department of Engineering Mechanics,Shanghai Jiao Tong University,Shanghai 200240,China) |
| |
| Abstract: | Applicability of complete geometric nonlinear model and one-order approximate nonlinear model in the case of large deformation was investigated by rigid-flexible coupling experiments for dynamic system composed of air-bearing test bed and elastic beam.Firstly,based on nonlinear relation between Green strain and displacement,complete geometric nonlinear model for an elastic beam was established by using absolute nodal coordinate formulation.Considering structural damping,rigid-flexible coupling dynamic equat... |
| |
| Keywords: | large deformation rigid-flexible coupling dynamics geometric nonlinear effect experiment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
