| 结构动态响应计算的模态综合技术 |
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| 引用本文： | 杜庆龙. 结构动态响应计算的模态综合技术[J]. 交通部上海船舶运输科学研究所学报, 1990, 13(1): 57-66 |
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| 作者姓名： | 杜庆龙 |
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| 作者单位： | 交通部上海船舶运输科学研究所结构室 |
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| 摘 要： | 本文把结构动态特性计算的模态综合超单元法拓广至结构动态响应的计算领域。由于结构模态对阻尼矩阵的非正交性带来的耦合阻尼项连成了响应计算的困难,文中采用了保持主对角项阻尼的响应运算,然后根据虚功原理对结果进行了耦合项阻尼的修正。
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| 关 键 词： | 动态响应 模态综合 超单元法 阻尼 |
Modal Synthesis Technique of Substructure Dynamic Response Calculation |
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| Du Qinglong. Modal Synthesis Technique of Substructure Dynamic Response Calculation[J]. , 1990, 13(1): 57-66 |
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| Authors: | Du Qinglong |
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| Affiliation: | Du Qinglong |
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| Abstract: | In this paper, the superelement method of modal synthesis of substructure dynamic character calculation is extended to computational domain of the substructure dynamic response. Because the coupling damping brought about by non-orthogonality of substructure modal and damping matrix leads up to the difficult of response calculation. The auther adopts the response calculation which keeps main diagonal damping and then, by law of virtual work principle, makes coupling damping correction of the results. |
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| Keywords: | dynamic response superelement method of modal synthesis nonorthogonality coupling damping virtual work principle |
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