模糊约束下复合材料的可靠性优化设计

Reliability-based Optimization of Laminated Composites Under Fuzzy Constraint

考虑结构的可靠度为模糊可靠度,优化的约束函数为模糊约束,利用模糊数学理论和优化设计方法建立了复合材料层合板的模糊可靠度优化模型,并提出了相应的计算方法。模糊可靠度优化是一种软分析方法,提出的方法可以更合理地描述客观实际,为复合材料结构的优化提供新的分析思路。

The fuzzy reliability and fuzzy constraint were introduced in the reliability optimum design of laminated composites. By the aid of the fuzzy mathematic theory and the optimization methodology, a fuzzy reliability optimum design model and the corresponding computation method were developed in this paper. Since the proposed method took into consideration of many influence factors, the composite structures designed based on this method would be more consistent with the engineering practice command.