摘要
对约束多体系统动力学的正则方程建立了最优化问题模型，采用辛差分格式，提出相应的最优化问题的约束变尺度法。该方法有效地提高了计算稳定性，算例说明了方法的有效性。
A constrained variable metric
method for solving canonical equations in constrained multibody systems dynamics is presented.
The framwork of which is based on rewriting the equations as the optimization problem and using
symplectic integral. The algorithm keep calculation stable for time simulation. Numerical
examples show that algorithm is numerically efficient.
出处
《计算力学学报》
CAS
CSCD
1999年第3期314-319,共6页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金
关键词
多体系统
正则方程
微分
代数方程组
约束最优化
multibody systems
canonical
equations
differential
algebraic equations
constrained optimization
