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Position: Home > Articles > Analysis on Probability Design for the Properties of Diaphragm Spring Transactions of the Chinese Society for Agricultural Machinery 2008,39 (4) 162+166-169

膜片弹簧载荷特性概率计算的分析

作  者:
娄岳海;高翔
单  位:
江苏大学汽车与交通工程学院;浙江机电职业技术学院机械工程系
关键词:
离合器;膜片弹簧;概率设计
摘  要:
膜片弹簧载荷特性对膜片弹簧尺寸参数的变化比较敏感,为预测或确定所设计的膜片弹簧产品在规定的使用条件下完成规定功能的概率,确保产品合格率指标,运用数理统计方法建立了膜片弹簧载荷-变形特性的概率计算模型。并根据所建立的模型,运用正态分布代数、一次二阶矩方法和Monte-Carlo模拟3种方法进行标准差计算。结果表明,正态分布代数估计得到标准差比较小,一次二阶矩方法估计得到标准差比较大,Monte-Carlo模拟方法估计得到标准差随着伪随机样本的大小而波动,但3种方法都能够满足离合器膜片弹簧设计精度要求。
译  名:
Analysis on Probability Design for the Properties of Diaphragm Spring
作  者:
Lou Yuehai1 Gao Xiang2(1.Zhejiang Institute of Mechanical & Electrical Engineering 2.Jiangsu University)
关键词:
Clutch,Diaphragm spring,Probability design
摘  要:
As a key part of diaphragm spring clutch,diaphragm spring determines the load characteristics of the clutch by its load-distortion properties that are sensitive to the dimension of diaphragm spring.In order to predict or determine the probability of normal performance under desired working condition to control qualified rate of products,calculus of probability model for load-distortion properties of diaphragm spring by means of mathematical statistics was established.Based on the model,the standard deviation was calculated by applying normal distribution algebra,first order second moment method and Monte-Carlo simulation.The standard deviation is relatively less by normal distribution algebra;bigger by first order second moment method,and fluctuant along with false random sample by Monte-Carlo simulation.These three methods all satisfied design precision of automobile clutch diaphragm spring.

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