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摘要:
Continuum topology optimization with stresses constraints is not only important but also complicated. Because stress is a local quantity, a large number of constraints must be considered, and the complication of optimization algorithm and sensitivity analysis is also increased. A global stress constraints method based on ICM (Independent Continuous Mapping) method, which takes minimum weight and strain energy of structure with multi-load-case as design objective and constraint respectively, is suggested in this paper. Dual quadratic programming is applied to solve the optimal model for continuum structure established in this paper. As a result, the number of constraints is reduced and the local optimal solution of the weight is also avoided. Two numerical examples are discussed, and their results show that the present method is effective and efficient.
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来源 :
COMPUTATIONAL METHODS, PTS 1 AND 2
年份: 2006
页码: 1003-,
语种: 英文
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