铁道科学与工程学报2017，Vol.14Issue(4)：827-832,6.
基于改进的Goodman曲线的车轮疲劳强度评估方法研究
Assessment method for fatigue strength of wheel based on improved Goodman curve
摘要
Abstract
Due to the simplicity of traditional Haigh-Goodman method, the fatigue assessment usually cannot reflect the fatigue condition of wheels. To make up the shortage of Haigh-Goodman method in calculating process of the wheel fatigue strength and improve the accuracy of the calculation of the wheel fatigue strength safety factor, the Haigh-Goodman method was improved, which included putting the safety factor as the key of fatigue assessment and improving the main method of calculation. Taking different types of wheels as objects, the finite element models were carried out. The fatigue strength of the key positions of the wheel was evaluated by the ways of the Haigh-Goodman method, improved Goodman method and Crossland criterion. Compared with the results, the three methods are basically identical. In many positions of the wheel, the safety factor of the improved Goodman method compared with Haigh-Goodman method are smaller, but for the plate holes of the non-axisymmetrical wheels, Crossland criterion still be used to evaluate the fatigue strength of wheels, to ensure the safe operation of wheels.关键词
车轮/疲劳强度/Goodman曲线法/疲劳强度评估准则Key words
wheel/fatigue strength/Goodman curve method/the evaluate criterion of fatigue strength分类
交通工程引用本文复制引用
王悦东,张佳宇..基于改进的Goodman曲线的车轮疲劳强度评估方法研究[J].铁道科学与工程学报,2017,14(4):827-832,6.基金项目
国家自然科学基金资助项目(51208072) （51208072）
铁路总公司科学计划项目(2012G002-11) （2012G002-11）
辽宁省教育厅优秀人才资助项目(LGQ2013052) （LGQ2013052）
