中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2015年
10期
1351-1355
,共5页
关节轴承%数值模拟%BP神经网络%遗传算法
關節軸承%數值模擬%BP神經網絡%遺傳算法
관절축승%수치모의%BP신경망락%유전산법
spherical plain beating%numerical simulation%BP neural network%genetic algorithm (GA)
针对实际生产中关节轴承内外圈间隙分布不均问题，以 GEW12关节轴承为例，应用ABAQUS软件对关节轴承挤压装配过程进行了数值模拟。采用BP神经网络建立了挤压模具形状与内外圈最大间隙与最小间隙之差的映射关系。以关节轴承内外圈间隙均匀分布为目标，结合遗传算法，提出了一种集数值仿真、人工神经网络和遗传算法为一体的关节轴承挤压模具型腔优化设计方法。实验结果表明，模具型腔经过优化后，轴承内外圈间隙均匀性得到了很大的改善，轴承金属流动速度更加均匀。
針對實際生產中關節軸承內外圈間隙分佈不均問題，以 GEW12關節軸承為例，應用ABAQUS軟件對關節軸承擠壓裝配過程進行瞭數值模擬。採用BP神經網絡建立瞭擠壓模具形狀與內外圈最大間隙與最小間隙之差的映射關繫。以關節軸承內外圈間隙均勻分佈為目標，結閤遺傳算法，提齣瞭一種集數值倣真、人工神經網絡和遺傳算法為一體的關節軸承擠壓模具型腔優化設計方法。實驗結果錶明，模具型腔經過優化後，軸承內外圈間隙均勻性得到瞭很大的改善，軸承金屬流動速度更加均勻。
침대실제생산중관절축승내외권간극분포불균문제，이 GEW12관절축승위례，응용ABAQUS연건대관절축승제압장배과정진행료수치모의。채용BP신경망락건립료제압모구형상여내외권최대간극여최소간극지차적영사관계。이관절축승내외권간극균균분포위목표，결합유전산법，제출료일충집수치방진、인공신경망락화유전산법위일체적관절축승제압모구형강우화설계방법。실험결과표명，모구형강경과우화후，축승내외권간극균균성득도료흔대적개선，축승금속류동속도경가균균。
The paper addressed a practical problem of the non-uniform clearance between the out-er ring and the inner ring after the nosing process in the assembly of spherical plain bearings ,the ex-trusion process of GEW12 spherical plain bearings was simulated by using ABAQUS software .BP neutral network was applied to identify the relationship between the die profile and the peak difference between the maximum clearance and minimum clearance .A genetic algorithm was used to optimize the die profile ,which yielded more uniform clearance distribution .Thus ,the FEM ,neutral network ,and genetic algorithm were combined to develop a method for the design of the optimal shape of a extru-sion die .The experimental results show that the clearance distribution between outer ring and inner ring is improved greatly and the metal flow of the bearing becomes more uniform .
