Matrix perturbation method for the vibration problem of structures with interval parameters |
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Authors: | Qiu Zhi-ping Chen Su-huan Liu Zhong-sheng |
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Institution: | The Centre of Computational Mechanics Jilin University of Technology, Changchun |
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Abstract: | When the parameters of the structures are uncertain, the structural natural frequ-encies become uncertain. In this paper, we deal with the vibration problem of the struc-ture with interval parameters, the eigenvalue problem of the structures with intervalparameters is transferrd into two different eigenvalue problems to be solved. The per-turbation method is applied to the vibration problem of the structures with interval pa-rameters, the numerical results show that lhe proposed method is sufficiently accurateand needs little computational efforts. |
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Keywords: | natural frequency interval parameter matrix perturbation |
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