摘要
本文研究了在运动过程中具有奇异位置的多体系统动力学方程的隐式算法，给出了隐式算法所用的Ｊａｃｏｂｉ矩阵，并建立了该矩阵中各子矩阵间的计算关系，提高了计算效率，计算结果表明隐式算法的计算速度和精度明显优于显式算法。
The implicit numerical algorithm for dynamics of the multibody systems with singularity position of motion was studied. The canonical equations for dynamics of multibody systems were used in the numerical algorithm. The Jacobian matrix used in implicit methods was obtained in the submatrix forms,that was very good in computational efficiency and suitable for many implicit numerical methods. The paper presented implicit Adams method for multibody dynamics. The numerical resalts show that the computational efficiency and precision of implicit algorithms are better than that of explicit algorithms.
出处
《计算力学学报》
EI
CAS
CSCD
1997年第4期384-387,共4页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金
航空科学基金
国家教委博士点基金
