大规模约束多体系统动力学方程的数值解法

Numerical Method of Dynamic Equations of Large-scale Constrained Multibody System

将复杂多体系统动力学方程的求解转化为对组成该系统的各个物体的动力学方程的求解,从而达到降低求解规模、减少求解时间的目的,并为大型有限元分析程序中解决多体系统动力学问题提供了良好的途径。最后给出了计算实例。

The solving of dynamic equations of complex multibody system is transfered into the solving of dynamic equations of single body among the system,so that solving scale and time are both reduced.Furthermore,the method also provides a good way for large-scale fi- nite element analysis program to deal with multibody systems.An example is presented in the end.