隨機載荷下基于Kriging模型的圓錐滾子凸度量優(yōu)化
發(fā)布時間:2019-05-26 20:01
【摘要】:為了減小圓錐滾子母線與滾道的接觸應力,以31313圓錐滾子軸承為對象,在考慮圓錐滾子軸承載荷隨機性的基礎上,以圓錐滾子母線與滾道的接觸應力最大值為響應值,以凸度量為設計變量,構建滾子與滾道的接觸應力最大值的Kriging模型.在此基礎上,以構建的Kriging模型為目標函數,建立圓錐滾子凸度量優(yōu)化模型.應用多島遺傳算法對凸度量進行尋優(yōu)計算,得到優(yōu)化的凸度量.結果表明:與傳統(tǒng)的優(yōu)化方法相比,優(yōu)化得到的凸度量能顯著降低圓錐滾子母線與滾道的最大接觸應力值.
[Abstract]:In order to reduce the contact stress between tapered roller bus and raceway, 31313 tapered roller bearing is taken as the object, and on the basis of considering the randomness of tapered roller bearing load, the maximum contact stress between tapered roller bus and raceway is taken as the response value. Taking the convex metric as the design variable, the Kriging model of the maximum contact stress between the roller and the raceway is constructed. On this basis, taking the Kriging model as the objective function, the convex metric optimization model of conical roller is established. The multi-island genetic algorithm is used to optimize the convex metric, and the optimized convex metric is obtained. The results show that compared with the traditional optimization method, the convex metric can significantly reduce the maximum contact stress between conical roller bus and raceway.
【作者單位】: 西京學院機械工程學院;中南大學交通運輸工程學院;
【基金】:陜西省西京學院科研基金(XJ130238)
【分類號】:TH133.3
本文編號:2485598
[Abstract]:In order to reduce the contact stress between tapered roller bus and raceway, 31313 tapered roller bearing is taken as the object, and on the basis of considering the randomness of tapered roller bearing load, the maximum contact stress between tapered roller bus and raceway is taken as the response value. Taking the convex metric as the design variable, the Kriging model of the maximum contact stress between the roller and the raceway is constructed. On this basis, taking the Kriging model as the objective function, the convex metric optimization model of conical roller is established. The multi-island genetic algorithm is used to optimize the convex metric, and the optimized convex metric is obtained. The results show that compared with the traditional optimization method, the convex metric can significantly reduce the maximum contact stress between conical roller bus and raceway.
【作者單位】: 西京學院機械工程學院;中南大學交通運輸工程學院;
【基金】:陜西省西京學院科研基金(XJ130238)
【分類號】:TH133.3
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