| 王琪,黄克累.具有奇异位置的多体系统动力学方程的隐式算法[J].计算力学学报,1997,14(4):384~387 |
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| 具有奇异位置的多体系统动力学方程的隐式算法 |
| Implicit numerical algorithm for dynamical equations of the multibody systems with singularity position |
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| DOI：10.7511/jslx19974061 |
| 中文关键词: 多体系统 隐式算法 动力学 奇异位置 |
| 英文关键词:multibody system,implicit algorithm |
| 基金项目:国家自然科学基金,航空科学基金,国家教委博士点基金 |
| 王琪 黄克累 |
| 北京航空航天大学应用数理系 |
| 摘要点击次数: 2523 |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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