摘要
本文提出一种新的车辆动力学数值仿真方法─－多体有限元方法，由Ｈａｍｉｌｔｏｎ变分原理建立多连续体动力学系统的能量泛函，用Ｈｉｌｂｅｒ逐步时间积分格式求解运动方程，讨论了多体有限元方法中处理边界耦合作用的拓朴分析、微分几何分析和数学规划的Ｌａｇｒａｎｇｉａｎ乘子法。车辆动力学的多体有限元方法有良好的实用价值，也适用于其他工程领域。
The paper presents a new numerical simulation method-Multibody Finite Elemen Method (MBFEM). The equations are established by applying the Hamilton principle. The Hilber time integration schemes are used to solve the equations. Topology analysis, differential geometry and mathematical programming of Lagrangian multipliter for boundary interaction problems are discussed,MBFEM is useful for vehicle dynamics,and for other engineering fields as well.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
1996年第1期79-85,共7页
China Railway Science
关键词
车辆
动力学
有限元法
数值仿真
数学规划
Vehicle dynamics, Multibody FEM, Numerical simulation, Differential geometry,Mathematical programming.
