| 约束多体系统动力学正则方程的约束变尺度方法 |
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| 引用本文： | 张学胜 陈万吉. 约束多体系统动力学正则方程的约束变尺度方法[J]. 计算力学学报, 1999, 16(3): 314-319 |
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| 作者姓名： | 张学胜 陈万吉 |
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| 作者单位： | 大连理工大学工程力学系,大连,116024 |
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| 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。
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| 关 键 词： | 多体系统 正则方程 微分 代数方程组 约束最优化 |
| 修稿时间： | 1998-03-10 |
Constrained variablemetric method for the canonical equations in constrained multibody systems dynamics |
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| Zhang Xuesheng,Chen Wanji. Constrained variablemetric method for the canonical equations in constrained multibody systems dynamics[J]. Chinese Journal of Computational Mechanics, 1999, 16(3): 314-319 |
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| Authors: | Zhang Xuesheng Chen Wanji |
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| Abstract: | 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. |
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| Keywords: | multibody systems canonical equations differential algebraic equations constrained optimization |
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