| 含动力刚化项的一般多柔体系统动力学研究 |
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| 引用本文： | 金国光,刘又午,王树新,张大钧.含动力刚化项的一般多柔体系统动力学研究[J].哈尔滨工业大学学报,2005,37(1):101-103. |
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| 作者姓名： | 金国光 刘又午 王树新 张大钧 |
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| 作者单位： | 1. 天津工业大学,机电学院,天津,300160
2. 天津大学,机械工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(50075009)
中国博士后科学基金资助项目． |
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| 摘 要： | 为获取柔性体的动力刚化项，将任意形状柔性体的非线性变形场表达为直至广义坐标的二阶小量形式．在小变形条件下，用Green应变张量得到了柔性体的耦合形函数．把约束引入多柔体系统，依据Kane方程建立了包含动力刚化项的一般柔性多体系统动力学方程．通过数值仿真算例，界定了传统多柔体系统动力学建模方法的适用范围．
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| 关 键 词： | 多柔性体系统 耦合形函数 动力刚化 约束 动力学 |
| 文章编号： | 0367-6234(2005)01-0101-03 |
| 修稿时间： | 2003年11月6日 |
Generally flexible multi-body system dynamics in consideration of dynamic stiffening terms |
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| JIN Guo-guang,LIU You-wu,WANG Shu-xin,ZHANG Da-jun.Generally flexible multi-body system dynamics in consideration of dynamic stiffening terms[J].Journal of Harbin Institute of Technology,2005,37(1):101-103. |
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| Authors: | JIN Guo-guang LIU You-wu WANG Shu-xin ZHANG Da-jun |
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| Abstract: | In order to obtain the dynamic stiffening terms of flexible body, the nonlinearized deformation field of an arbitrary flexible body is expressed as the form that at least second order terms of the generalized coordinates should be considered. The coupling shape function is obtained by Green's strain tensor the assumption of small deformation of the arbitrary flexible body. The dynamic equations of generally flexible multi-body system, including constraints and dynamic stiffening terms, are established according to Kane's equations. The application range of traditional dynamic modeling of flexible multi-body system is obtained based on the simulation illustrations. |
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| Keywords: | flexible multi-body system coupling shape function dynamic stiffening constraint dynamics |
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