| 基于MPI的柔性多体系统动力学并行计算 |
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| 引用本文： | 常忠正,洪嘉振.基于MPI的柔性多体系统动力学并行计算[J].宇航学报,2006,27(1):89-93. |
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| 作者姓名： | 常忠正 洪嘉振 |
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| 作者单位： | 上海交通大学工程力学系,上海,200030 |
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| 摘 要： | 研究解决多体系统动力学仿真计算中串行计算速度比较慢的问题。现将MPI（Message Parallel Interface）并行计算环境引入柔性多体系统动力学仿真软件cADAMB（computer Aided Dynamic Analysis of Multi Body），对其中的单向递推组集建模方法进行了并行化改造，并给出了加速比和各进程效率的估计。结果显示该并行算法能大幅度提高仿真计算的速度。
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| 关 键 词： | 多体系统动力学 单向递推组集建模方法 并行计算 动力学仿真 |
| 文章编号： | 1000-1328（2006）01-0089-05 |
| 收稿时间： | 01 20 2005 12:00AM |
| 修稿时间： | 2005-01-202005-06-06 |
Parallel Computing Research on Flexible Multibody Dynamics Using MPI |
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| CHANG Zhong-zheng,HONG Jia-zhen.Parallel Computing Research on Flexible Multibody Dynamics Using MPI[J].Journal of Astronautics,2006,27(1):89-93. |
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| Authors: | CHANG Zhong-zheng HONG Jia-zhen |
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| Institution: | Department of Engineering Mechanics, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | To solve the problem that simulation speed is very slow in most Multibody Dynamics software, this paper applied MPI (Message Parallel Interface) in CADAMB which is a flexible Multibody Dynamics software. The paper parallelized the compulation model of Forward Recursive Formulation in CADAMB and estimated the acceleration ratio. The result shows that the parallel algorithm largely increases simulation speed. |
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| Keywords: | MPI |
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