测量不确定度在链条疲劳性能试验中的应用  

Application of uncertainty in measurement of fatigue performance of chain

作　　者：朱国仁[1] 徐建民[1] 杨刚[1] 阚君武[1] 尼新兴[1] 

机构地区：[1]吉林大学国家链条质量监督检验中心,吉林长春130025

出　　处：《中国测试技术》2004年第6期41-42,91,共3页CHINA MEASUREMENT & TESTING TECHNOLOGY

摘　　要：测量不确定度的大小决定了测试结果的可信程度。对于不同产品和测试方法 ,影响测量不确定度的因素以及不确定度的计算方法不同。本文作者首次在链条疲劳性能试验中引入了不确定度 ,通过大量的试验测试找出了影响不确定度的主要因素。在此基础上 ,推导出了计算链条疲劳性能不确定度的理论公式 ,给出了不确定度在报告中的表述方法 ,讨论了不确定度对测量结果的影响。The value of uncertainty in measurements decides re liability of the te sting results. Both of the influence factors on uncertainty and calculating meth od of uncertainty are different for different products and its testing way. In t his paper, uncertainty is introduced for the first time into the measurement of fatigue performance of chain. A lot of experiments have been conducted to find o ut the key influence elements on uncertainty, and then the calculating method of uncertainty was educed. At the same time, the expression of uncertainty was pre sented, and the influence of uncertainty on testing results was discussed.

关 键 词：不确定度 链条 疲劳性能试验 测量方法 数学模型 

分 类 号：TH132.45[机械工程—机械制造及自动化]