摘要
研究汽车轮毂冲击试验的解析预测方法 .基于曲杆弯曲理论和动静法,建立了汽车轮毂冲击试验轮辐处的最大应力的理论计算模型;通过与有限元计算结果的对比,验证了理论模型的准确性.对比一批汽车轮毂的冲击试验的有限元和理论模型的计算结果,可知,理论模型的准确度与轮辐曲率变化、截面形状复杂程度有关,最大相对误差不超过15%.该研究为汽车轮毂快速优化设计提供了方法和理论依据.
An Analytical prediction method for the impact test of vehicle wheels was studied. Based on both the Bending Theory for curved bars and the Dynamic Static Method,a theoretical calculation model of the maximum stress at the spokes of the wheel was established in the impact test. The FEA results from testing a batch of automobile wheel hubs were compared with those from the theoretical model,and the model was verified. The accuracy of the model was related with the changes of the spoke curvature and the shapes of its cross-section. The maximum relative error did not exceed 15%. The study provided an analysis method and theoretical basis for rapid optimization of the vehicle wheels.
出处
《车辆与动力技术》
2015年第4期11-14,共4页
Vehicle & Power Technology
基金
河南省教育厅自然科学研究计划项目(2011C460002)
关键词
汽车轮毂
冲击试验
曲杆弯曲
动静法
快速优化
vehicle wheels
Impact test
bending theory of curved bars
dynamic static method
rapid optimization
