CAJ | 학술논문

针对单目标多约束非线性优化问题的稳健可靠性优化设计，使用摄动随机有限元法进行可靠性设计，并对优化问题的目标函数和约束函数进行灵敏度分析，产生灵敏度附加项，建立稳健可靠性优化设计模型。为了提高求解效率，提出一种改进遗传算法，并应用于梁结构的稳健可靠性优化设计模型求解中，实例说明该方法的可行性与实用性。
침대단목표다약속비선성우화문제적은건가고성우화설계，사용섭동수궤유한원법진행가고성설계，병대우화문제적목표함수화약속함수진행령민도분석，산생령민도부가항，건립은건가고성우화설계모형。위료제고구해효솔，제출일충개진유전산법，병응용우량결구적은건가고성우화설계모형구해중，실례설명해방법적가행성여실용성。
Aiming at the single target multi-constrained nonlinear optimization problem of robust reliability optimization de-sign, the reliability design is conducted by using the perturbation stochastic finite element method, and sensitivity analysis on the objective function and constraint function of optimization problem are also conducted to get the sensitivity additional items, then robust reliability optimization design model is established. In order to improve the computational efficiency, an improved genetic algorithm is proposed, and applied to the structure optimization design of robust reliability model;the numerical results show that the method is feasible and practicable.