用实验的方法确定机械零部件的P-S-N曲线  

Determining P-S-N Curve of Mechanical parts by Experim- ent

作　　者：常远[1] 骆红云[1] 程波 陈忠良[1] 

机构地区：[1]长春工业大学,吉林长春130000 [2]中信重机公司

出　　处：《矿山机械》2004年第6期53-55,共3页Mining & Processing Equipment

摘　　要：介绍了机械零部件P-S-N曲线的意义和用途及用实验方法确定机械零部件的P-S-N曲线的两个步骤。着重讨论了疲劳试验的两种重要方法。The paper introduces the meaning and uses of P-S-N curve of mechanical part and components, and two steps of determining P-S-N curve by experiment-measurement of fatigue limit, determination of P-S-N medium endurance area, discusses emphatically the two kinds of important methods of fatigue test--up-and-down method and group method, and describes how to handle the experimental findings under two conditions that fatigue endurance is lognormal distribution or Weibull distribution.

关 键 词：机械设计 安全系数 可靠度 概率法 P-S-N曲线 疲劳性能曲线 

分 类 号：TD40[矿业工程—矿山机电]