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本文用简化的方法,考虑了受压及压剪联合作用的复合材料加筋壁板的总体屈曲和局部屈曲、材料强度、刚度、轴向应变等因素以及其它工程要求的影响,用数学规划法提出壁板的优化设计问题,用乘子罚函数法求解。以石墨-环氧帽型加筋板为例,所得优化设计结果与NASA得出的最优曲线一致,证明了所用方法的可靠性,并可进一步推广应用于工程实践。
In this paper, a simplified method is used to consider the effects of compressive and compressive shear on the total buckling, local buckling, material strength, stiffness, axial strain, and other engineering requirements of composite stiffened panels, using the mathematical programming method. The optimal design of the panel was proposed and solved by the multiplier penalty function method. Taking the graphite-epoxy cap stiffened plate as an example, the optimized design results are consistent with the optimal curve obtained by NASA, which proves the reliability of the method used and can be further applied to engineering practice.