摘要
运用最优控制思想,讨论了多体系统动力学DAEs数值计算方法,推出了约束违约误差可达计算机有效精度的Baumgarte最佳违约修正系数,给出了具有高精度、高效率、强稳定性的非线性系统动力学约束违约的自动修正方法.数值算例说明了该方法的有效性.
? Based on the idea of the optimal control, the method of DAEs for multibody system dynamics is discussed. The best Baumgarte's correction parameters which reduce the constraint errors to the machine precision are obtained. A high precision, efficiency and stability self correction algorithm of constraint errors for nonlinear system dynamics is presented. The effectiveness of the present method is demonstrated by numerical example.
出处
《大连理工大学学报》
CAS
CSCD
北大核心
1999年第1期22-25,共4页
Journal of Dalian University of Technology
关键词
动力学
非线性系统
约束违约修正
微分代数方程
dynamics
nonlinear systems/differential algebraic equations
self correction algorithm of constraint errors