考虑平面形状误差的配合表面接触状态研究

为提高装配接触分析的准确性,对考虑平面形状误差的配合表面接触状态进行研究。以平面为对象,考虑加工导致的形状误差,提出一种形状误差与装配力共同作用下的配合表面接触状态理论分析方法。在此基础上,提出配合误差的概念及计算方法,揭示形状误差对装配精度的影响关系。随后,采用有限元法验证所提方法。结果表明:该方法是有效的,准确预测了考虑形状误差情况下配合表面的接触状态,并计算了配合误差。文中所提方法可为考虑形状误差的装配精度预测与分析提供参考。

Research on Contact State of Mating Surfaces Taking into Account Plane Form Error

To improve the accuracy of assembly contact analysis,the contact state between mating surfaces with form error was studied.With the plane as object,the contact state analysis method of mating surfaces considering the form errors and assembly forces was proposed.On this basis,the concept of mating variation and its calculating method was proposed,in to reveal the effects of form errors on the assembly accuracy.Subsequently,the finite element method was adopted to verify the proposed method.The results show that the method is effective,accurately predicts the contact state of mating surfaces with form errors,and calculate the complex error.The proposed method can provide a basis for prediction and analysis of the assembly accuracy when considering the form errors.