三点接触轴承球疲劳试验机特征频率计算  

Characteristic Frequency Calculation of Fatigue Life Tester for Balls with Three Points Contact

作　　者：周井玲[1] 陈建春[1] 陈晓阳[2] 张军利[1] 

机构地区：[1]南通大学机械工程学院,江苏南通226019 [2]上海大学轴承研究室,上海200072

出　　处：《轴承》2010年第10期28-30,共3页Bearing

基　　金：国家自然科学基金资助项目(60974049);国家"十一五"重点项目(JPPT-115-197);江苏省自然科学基金资助项目(BK2009613)

摘　　要：根据三点接触轴承球疲劳试验机旋转部件的运动关系和载荷情况,推导了旋转部件特征频率的计算公式,并进行了计算,同时对比分析了相关零部件的固有频率。结果表明:部件的特征频率与同其接触的元件数目和其通过疲劳失效点的速度有关;固有频率只与本身属性有关。特征频率的计算为准确判定失效部位提供了理论依据。According to the kinematic relationships and load conditions of rotating parts in fatigue life tester of balls with three points contact,the calculation formula for characteristic frequency of rotating parts is deduced,and the free frequency of related parts is compared and analyzed at the same time.The results show that the characteristic frequency of parts is related to the number of others which contact with it and the speed of they pass the spalling point,and the free frequency is only related to its property.An instruction can be used for the judgment of failure part in the fault diagnosis system from the characteristic frequency calculation.

关 键 词：三点接触球疲劳试验机 故障诊断 特征频率 计算 

分 类 号：TH133.33[机械工程—机械制造及自动化] TH871.3