摘要
本文应用虚功原理对多杆多自由度机构进行了动力分析,证明了虚拟力系与转化运动链中平衡力矩的线性关系,求出了线性方程组的表达式,并由此求得虚拟力系的直接求解式。文中也考虑了虚拟力的间接求解的简化计算法。
By means of the principle of virtual work the dynamic analysis of mechanisms with multiple links and inputs are analysed. The linear rela- tionship between the hypothetic forces and balancing moments in the transferring kinematic chain is proved. And the expressions to determine the hypothetic forces are found. In addition the indirect method of deter- mination of hyPothetic forces is also considered.
关键词
多杆机构
多自由度
动力分析
杆组
mechanisms of multiple links,assur growps,dynamic analysis
