本文選題：螺紋連接 + 多目標優(yōu)化　； 參考：《中國機械工程》2017年17期

【摘要】：為提高機架螺紋連接壽命,運用彈塑性接觸有限元方法對拉桿連接螺紋進行強度分析,結合參數(shù)化建模,建立考慮牙間均載和應力峰值的多目標優(yōu)化模型,采用徑向基函數(shù)(RBF)神經網絡方法和帶精英策略的非支配排序遺傳算法(NSGA-Ⅱ)求解。結果表明:牙側角約為15°時,牙間軸向載荷分布不均勻率減小13.6%,等效應力峰值減小6.9%,第一主應力峰值減小11.5%。
[Abstract]:In order to improve the life of frame thread connection, the strength analysis of strut joint thread is carried out by using elastic-plastic contact finite element method, and a multi-objective optimization model considering the peak stress and uniform load between teeth is established with parameterized modeling. The radial basis function (RBF) neural network method and the undominated sorting genetic algorithm (NSGA- 鈪，

本文編號：1891667