| Ritz矢量和逐点放松法在固定界面模态综合法中的应用 |
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| 引用本文： | 段根宝,胥加华.Ritz矢量和逐点放松法在固定界面模态综合法中的应用[J].交通部上海船舶运输科学研究所学报,1990,13(2):13-13. |
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| 作者姓名： | 段根宝 胥加华 |
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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，交通部上海船舶运输科学研究所结构室 |
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| 摘 要： | 本文将Ritz矢量和逐点放松法应用于固定界面模态综合法,其一是用固定界面Ritz矢量替代子结构的固定界面模态,其二是在形成缩聚刚度阵和质量阵时以逐点放松消去法替代矩阵求逆的计算。实例计算证明,两个替代方案均能节省较多的计算机时。
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| 关 键 词： | 结构动力分析 模态综合技术 矢量 |
Application of Ritz Vectors and Method of Gradual Node Relaxation to Modal Synthesis Method with Fixed Interface |
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| Authors: | Duan Genbao Xu Jiahua |
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| Institution: | Duan Genbao Xu Jiahua |
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| Abstract: | In the paper, Ritz vectors and the method of gradual node relaxation are applied to modal synthesis method with fixed interface. First, the fixed interface Ritz vectors are substituted for the fixed interface modes of substructure. Second, the method of gradual node relaxation is substituted for the method of matrix inversion in forming condensed stiffness and mass matrix. A comparision of the numerical results indicates that both the two replacememts can save more CPU time during calculation. |
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| Keywords: | dynamic analysis of structure modal synthesis technique fixed interfnce joint interface vector characteristic value |
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