摘要
给出了多柔体系统动力学方程的一种新的解法:在每一时间步,利用违约稳定法及Newmark-β直接积分法计算迭代初值,基于控制方程及约束方程的泰勒展开,推导出Newton-Raphson迭代公式,对位移及拉格朗日乘子进行修正。就一典型算例进行了数值仿真,结果证明了本文方法的有效性。
A new method to solve flexible Mtdti-Body dynamic equations is introduced in the paper.At each time step the initial iterative values were evaluated by CVSM and Newmark-β method.and then the Newton-Raphson iterative formtda for modifying the displacements and Lagrange multipliers was derived from the Taylor expansions of the control and constraint equations.The effectiveness of the presented method is illustrated by the simulation restdts of one typical examples.
出处
《机电产品开发与创新》
2007年第6期27-28,共2页
Development & Innovation of Machinery & Electrical Products
关键词
多柔体系统
动力学方程式
数值解法
flexible multibody system
dynamic equations
numerical method
