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Interval optimization of dynamic response for structures with interval parameters
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DOI：10.1016/j.compstruc.2003.09.001.png)
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This paper presents an interval optimization method for the dynamic response of structures with interval parameters. The matrices of structures with interval parameters are given. Combining the interval extension of function with the perturbation theory of dynamic response, the method for interval dynamic response analysis is derived. The interval optimization problem is transformed into a corresponding deterministic one. Because the mean values and the uncertainties of the interval parameters can be elected as the design variables, more information of the optimization results can be obtained by the present method than that obtained by the deterministic one. The present method is implemented for a truss structure and a frame structure. The numerical results show that the method is effective. (C) 2003 Elsevier Ltd. All rights reserved.
Keyword:
interval optimization
interval parameter structure
interval parameter
interval extension of function
deterministic optimization
interval dynamic response
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