基于CAE与试验对标方法的汽车车轮研究

Research on Automotive Wheels Based on CAE and Experimental Benchmarking Methods

汽车轮辋是行驶系中的关键安全运动件,为了提高汽车轮辋设计的可靠性,建立其有限元模型,并基于有限元法和试验方法对其进行模态分析,分析结果表明,误差在5%以内,验证了CAE方法具有较高的精度。基于该有限元模型进行了静力强度分析和疲劳寿命分析,分析结果表明,最大应力出现在辐条减重孔边缘,最大应力值为338.5 MPa,最小寿命为2.328×10^(6)次,满足设计要求。该研究为同类产品的设计开发提供了一套系统的方法和参考。

Automobile rim is a key safe moving part in driving system.In order to improve the reliability of automobile rim design,the finite element model of automobile rim is established,and the modal analysis is carried out based on finite element method and experimental method.The analysis results show that the error is less than 5%,which verifies that the CAE method has high accuracy.The static strength analysis and fatigue life analysis are carried out based on the finite element model.The analysis results show that the maximum stress appears at the edge of the spoke weight reduction hole,the maximum stress is 338.5 MPa,and the minimum service life is 2.328×10^(6),which meets the design requirements.This research method provides a set of systematic methods and references for the design and development of similar products.