摘要
基于将 2种变量的耦合运算降低到最少的数学模型的建立 ,是解决柔性多体系统动力学数值病态的关键。提出一种柔性多体系统动力学的单向递推建模方法。在此基础上提出一种新的违约校正方法 ,在数值计算上给予保证。最后 ,通过对一个闭环柔性多体系统的动力学与控制仿真计算的实现 。
Development of a dynamics model, in which as possible as few coupling calculations between the two kinds of variables describing the motion of flexible multibody system are obtained,is a key of solving the illness of numerical calculation.On the basis of this viewpoint, a forward recursive formulation of dynamics for flexible multibody system is established in this paper, which has higher accuracy, efficiency and stability of numerical calculation.A new method of violation adjustment is given to ensure completing the dynamics simulation.Finally, an example of dynamics simulation for a flexible multibody system with closed loops is used to verify the feasibility of the formulation and method.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2000年第6期611-615,共5页
China Mechanical Engineering
基金
国家自然科学基金资助项目! (1 9832 0 4 0 )
教育部博士点专项基金资助项目 !(960 2 4 1 81 )
关键词
计算动力学
算法
柔性多体系统动力学
递推建模
flexible multibody system computational dynamics dynamics simulation formulation computational method
