| 结构模态分析的有限元并行模拟 |
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| 引用本文： | 付朝江,张武.结构模态分析的有限元并行模拟[J].力学与实践,2006,28(2):16-20. |
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| 作者姓名： | 付朝江 张武 |
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| 作者单位： | 1. 上海大学计算机工程与科学学院,上海,200072;南昌大学建筑工程学院,南昌,330029
2. 上海大学计算机工程与科学学院,上海,200072 |
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| 基金项目： | 上海市教委重点项目(03AZ03)资助 |
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| 摘 要： | 以子结构模态综合分析为基础,提出一种求解大型结构特征值问题的并行解法．采用子结构模态综合算法,结构特征模态采用子空间迭代方式并行求解．这种子空间迭代法的子结构并行计算的实施是利用子结构的刚度阵和质量阵而不必完全组集系统刚度阵和质量阵求解综合系统的特征值问题．数值结果表明这种求解大型结构特征值问题的并行算法是可行有效的．
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| 关 键 词： | 特征值 振动模态 并行计算 加速比 有限元 |
| 收稿时间： | 2005-03-16 |
| 修稿时间： | 2005-10-19 |
FINITE ELEMENT SIMULATION OF MODAL ANALYSIS IN STRUCTURAL DYNAMICS BY PARALLEL COMPUTING |
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| FU Chaojiang,ZHANG Wu.FINITE ELEMENT SIMULATION OF MODAL ANALYSIS IN STRUCTURAL DYNAMICS BY PARALLEL COMPUTING[J].Mechanics and Engineering,2006,28(2):16-20. |
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| Authors: | FU Chaojiang ZHANG Wu |
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| Institution: | 1.School of Computer Engineering and Science, Shanghai University, Shanghai 200072, China;2.School of Architectural Engineering, Nanchang University, Nanchang 330029,China |
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| Abstract: | On the basis of modal synthesis analysis, a parallel algorithm of solving large-scale structural eigenproblems is presented in this paper. The eigenmodes of the structure are obtained using a subspace iterative parallel method. The substructure subspace iterative method is implemented using the stiff matrix and mass matrix of the substructures without assembling the stiff and mass matrix of the whole structure. The numerical results show that this parallel algorithm is effective for large scale structure eigenproblems. |
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| Keywords: | eigenvalue vibration mode parallel computing speedup finite elements |
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