摘要
针对42CrMo钢生产新齿轮的需要,进行了齿轮弯曲疲劳强度试验。在对该材料进行化学成分分析和硬度检测后,提出基于LOCATI方法进行双齿脉动加载试验。根据试验所得数据,按统计学原理,拟合出S-N曲线,并获得置信度为95%、可靠度为95%的弯曲疲劳极限应力值。为该材料齿轮的弯曲疲劳可靠性设计、有限寿命设计提供了真实的试验依据。
In order to decide whether 42CrMo steel could be selected as gear-material,tests on the bending fatigue strength of gears are analyzed.After taking chemical composition analysis and hardness test of 42CrMo steel,the pulsating loading test based on the Locati method is proposed.Then in terms of the principle of statistics,a fitted N-S curve is obtained by processing the data gained from the test and the bending fatigue limit is achieved with a 95% of both confidence and reliability.They provide the experimental basic data for the gear＇s reliability design and limited life design.
出处
《机械设计与研究》
CSCD
北大核心
2011年第4期77-79,共3页
Machine Design And Research
