基于多目标优化策略的结构可靠性稳健设计

Structural Robust Reliability Design for Multi-objective Optimization

应用可靠性稳健优化设计理论和多目标决策方法,将结构可靠性稳健优化设计转化为多目标优化问题。运用灰色理论中的关联分析法,选取粒子群算法中的全局极值和个体极值,提出了灰色粒子群算法求解可靠性稳健优化设计问题。与传统方法相比,该方法简便易行并能迅速准确地得到结构可靠性稳健优化设计信息。

Structural reliability design optimization is transformed into the optimization with multi-objective decision-making approach. The global optimum and personal optimum in PSO algorithm are selected with relevancy analysis method of the Grey Theory. Thus, a Grey Swarm Particle Optimization (Grey PSO) algorithm is presented for the robust optimization design on reliability, and applied to rear-axle housing of a vehicle as a numerical example.