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Optimum structural design via convex model superposition

โœ Scribed by Sara Ganzerli; Chris P. Pantelides

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
523 KB
Volume
74
Category
Article
ISSN
0045-7949

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โœฆ Synopsis

A new approach is presented for implementing a multidimensional convex model for the optimal design of structures subjected to bounded but uncertain loads. This is a non-probabilistic method for including uncertainty in the design. In previous studies, a two-stage optimization process was used to predict the eect of uncertainties, modeled using convex theory, on the response constraints. Here, a superposition method is used to ยฎnd the response of structures with load uncertainties. The convex model is implemented on the eect of the uncertain loads, i.e., the displacements and stresses. The advantage of the method is that one optimization process is eliminated, and the constraints do not need to be expressed explicitly as a function of the design variables.

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