机械研究与应用
機械研究與應用
궤계연구여응용
Mechanical Research & Application
2015年
4期
54-56
,共3页
可靠性设计%稳健设计%优化设计%改进遗传算法
可靠性設計%穩健設計%優化設計%改進遺傳算法
가고성설계%은건설계%우화설계%개진유전산법
reliability design%robust design%optimization design%improved genetic algorithm
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。
針對單目標多約束非線性優化問題的穩健可靠性優化設計,使用攝動隨機有限元法進行可靠性設計,併對優化問題的目標函數和約束函數進行靈敏度分析,產生靈敏度附加項,建立穩健可靠性優化設計模型。為瞭提高求解效率,提齣一種改進遺傳算法,併應用于樑結構的穩健可靠性優化設計模型求解中,實例說明該方法的可行性與實用性。
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.