柔性机构动力学分析的有限元件法

对柔性机构动力学进行建模和计算机模拟。方法以组成机构的构件为单元，把构件的刚性运动和弹性变形统一用模态参数表示；以梁单元为代表分析了集中质量及分布质量情况下的梁的惯性特征；引入弹性的概念，

Finite Element Method of Dynamical Analysis of Mechanisms with Flexible Links

Aim To perform dynamics analysis of mechanisms with flexible links and computer simulation. Methods Elements of mechanisms were used to perform the configuration, kinematics and dynamics analysis of mechanisms with flexible links; spa- tial beam element was introduced and the motion equations of mechanisms were de- rived based on the principle of virtual power power with conception of elastic line of beam. Results Finite element method of dynamics analysis of mechanisms is provided and a computer programme was developed. Conclusion Finite element method of dynamics analysis of mechanisms with flexible links has not only the theoretical value but also applications in the field of mechanical engineering.