| 可压缩流固耦合振动问题特征值分析的矩阵摄动法 |
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| 引用本文： | 巨建民,董毓新.可压缩流固耦合振动问题特征值分析的矩阵摄动法[J].大连理工大学学报,1993(Z1). |
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| 作者姓名： | 巨建民 董毓新 |
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| 作者单位： | 大连理工大学，大连理工大学 大连 116024，大连 116024 |
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| 摘 要： | 在考虑流体的可压缩性时，流固耦合结构的动力学振动微分方程的系数矩阵将是不对称的．将流体自由度凝聚在固体位移上之后，获得了一个具有对称系数矩阵的非线性特征方程．然后采用矩阵摄动理论给出了这一特征问题的渐近解．
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| 关 键 词： | 可压缩流体 摄动法 有限元法/流固耦合振动 |
Matrix perturbation methods for eigenvalue analysis of vibration of compressible fluid-solid |
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| Ju Jianmin,Dong Yuxin.Matrix perturbation methods for eigenvalue analysis of vibration of compressible fluid-solid[J].Journal of Dalian University of Technology,1993(Z1). |
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| Authors: | Ju Jianmin Dong Yuxin |
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| Abstract: | When compressibility of fluid is considered,the parameter matrixes of vibration equation of fluid-structure will be nonsymmetry. After fluid freedoms are reduced to solid by the paper,a non linear characteristic equation that has symmetric matrixes has been obtained; then the approximate value has been solved with matrix perturbation methods. |
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| Keywords: | compressible fluid perturbation method finite element methods/fluid-solid interaction vibration |
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