摘要
将机械零件的应力和强度均视为模糊变量 ,用模糊贴近度方法建立了机械零部件应力 -强度可靠性模型。该模型不限于应力和强度服从正态分布 ,便于工程应用 。
The stress and strength are regarded as fuzzy variables when it is very difficult to get the distribution parameters. By using expert experiences, the reliability model of machine parts stress and strength is established with fuzzy closeness degree method. Formulas for calculating fuzzy reliability are derived. This method can be applied to dispersive data of non normal distribution.
出处
《机械科学与技术》
CSCD
北大核心
2002年第2期194-195,共2页
Mechanical Science and Technology for Aerospace Engineering
关键词
机械强度
可靠性
模糊分析
Mechanical strength
Reliability
Fuzzy analysis
