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Weibull分布定时无失效数据可靠性分析方法
引用本文:傅惠民,张勇波.Weibull分布定时无失效数据可靠性分析方法[J].航空动力学报,2010,25(12):2807-2810.
作者姓名:傅惠民  张勇波
作者单位:北京航空航天大学小样本技术研究中心,北京,100191
基金项目:国家自然科学基金(10472006); 北京市教育委员会共建项目(XK100060418)
摘    要:定时无失效数据的处理是当前工程中亟需解决的问题.为此,提出一种Weibull分布定时无失效数据可靠性分析方法,在形状参数下限已知的情况下,给出了可靠度和使用寿命的单侧置信下限,从而能够根据定时无失效数据对产品进行高置信水平的可靠性评定.大量Monte Carlo模拟验证结果表明,该方法既可以充分利用定时无失效数据,又能对Weibull分布无失效数据进行累加,所以增大了信息量,提高了预测精度.文中给出某型号高压容器定时无失效寿命试验数据的计算实例.

关 键 词:Weibull分布  定时无失效数据  寿命  可靠性  高压容器  置信限
收稿时间:7/9/2010 9:48:31 AM
修稿时间:9/7/2010 4:45:51 PM

Method of reliability analysis for time truncated zero-failure data based on Weibull distribution
FU Hui-min and ZHANG Yong-bo.Method of reliability analysis for time truncated zero-failure data based on Weibull distribution[J].Journal of Aerospace Power,2010,25(12):2807-2810.
Authors:FU Hui-min and ZHANG Yong-bo
Affiliation:Beijing University of Aeronautics and Astronautics,Beijing University of Aeronautics and Astronautics
Abstract:It is an outstanding problem in engineering application to solve problems related to time truncated zero-failure data. In this paper, a method of reliability analysis for time truncated zero-failure data based on Weibull distribution was presented, which can making an high confidence assessment for the reliability of product with time truncated zero-failure data when the lower limit of shape parameter and the one-side lower confidence limits of reliability and life were provided. Large mount of Monte Carlo simulation results show that this method can combine the zero-failure data that contributing to Weibull distribution together and make full use of information of time truncated zero-failure data, the precision of forecasting is obviously improved. The method introduced in this paper was used for analyzing the time truncated zero-failure data provide by the life test of one kind of high pressure vessel.
Keywords:Weibull distribution  time truncated zero-failure data  life  reliability  high pressure vessel  confidence limits
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