Computation of Frequencies and Damping Ratios for Adaptive Structures
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摘要: 本文给出状态空间法的一种新技巧,用于求解自适应结构的振动频率和阻尼比。当采用集中质量法时,状态矩阵的Cholesky分解具有解析式。从而既可提高计算精度,又可节约计算时间。最后以算例加以说明。Abstract: In this paper,a new technique of state vector approach to solving damping ratios of adaptive structures is proposed,by which the state matrix can be analytically conducted the Cholesky decomposition,providing that the mass matrix is derived by lumped method.In this case,not only the computational accuracy is raised,but also the numerical operations are reduced.Finally,some numerical results are presented to show that the solution method is simple and efficient.
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Key words:
- adaptive structure /
- active member /
- state vector approach /
- frequency /
- damping ratio
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