摘要
应用柔性多体系统动力学进行货车动力学仿真研究。以货车 C6 2 A和罐车 G6 0 为对象 ,把转向架和轮对作为刚体 ,车体作为柔性体 ,对车体建立有限元模型并进行模态分析。用超单元概念通过界面凝聚功能对柔性车体进行预处理 ,组成刚 -柔耦合的车辆动力学模型并进行动力学仿真计算 ,通过与刚性系统模型的运算结果进行对比 ,分析车体的柔性效应对车辆运行安全性的影响。仿真计算是采用有限元分析软件 NASTRAN(MSC)和多体系统动力学软件 ADAMS/ Rail来完成的。
Multi flex body system dynamics analyzing method is used to simulate the dynamics response of freight car. The studied objects are the open freight C62A car and tank G60 car, whose bogies and wheelsets are thought as rigid bodies and car bodies are thought as flex parts. Finite element models of car bodies are constructed and analyzed. The flex car bodies are pre handled by condensing the freedoms of interface through superelement concept, the rigid flex coupling system dynamics equations are constructed and calculated, whose results are compared with those of rigid car bodies system, the effects of elasticity car bodies to the safety of cars are discussed. The simulation is completed by using the finite element software NASTRAN(MSC) and the mutli body dynamics software ADAMS/Rail.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2000年第6期40-45,共6页
Journal of the China Railway Society
