本文選題：曲柄半徑 + 誤差建模��； 參考：《組合機床與自動化加工技術》2016年10期

【摘要】：結合曲軸在加工過程中的綜合受力,利用有限元仿真方法對曲軸各軸頸軸線在加工過程中的彈性變形進行了研究。根據隨動磨削中曲軸及砂輪的運動情況,建立了曲軸曲柄半徑誤差分析模型,并通過MATLAB軟件分析曲軸受力變化與曲軸曲柄半徑缸間差異之間的影響關系。理論表明,增大頂尖力或減小磨削力有利于減小曲柄半徑缸間差異。最后,通過驗證實驗證明了曲柄半徑誤差分析模型及理論分析的正確性。同時,考慮到磨削力變化對曲軸軸頸表面質量的影響,優(yōu)先選擇優(yōu)化頂尖力以降低缸間差異的方法。
[Abstract]:Combined with the comprehensive force of crankshaft in the process of machining, the elastic deformation of each axis of crankshaft in machining process was studied by using finite element simulation method. According to the movement of crankshaft and grinding wheel in following grinding, a crankshaft crank radius error analysis model is established, and the relationship between crankshaft force change and crankshaft radius cylinder difference is analyzed by MATLAB software. The theory shows that increasing center force or decreasing grinding force can reduce the difference between crank radius cylinders. Finally, the correctness of the crank radius error analysis model and theoretical analysis is proved by the verification experiment. At the same time, considering the influence of grinding force on the surface quality of crankshaft journal, the method of optimizing the center force to reduce the difference between cylinders is preferred.
【作者單位】： 上海交通大學機械與動力工程學院;上汽通用五菱汽車股份有限公司;
【基金】：基金項目:汽車發(fā)動機制造精度控制的“兩微米”工程(2012BAF06B03)
【分類號】：TK406;TG580.6

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