分析

[中文适用范围]： 本国际标准提供了使用连续参数（例如失效时间@失效周期@机械应力@等）分析威布尔分布数据的方法。本标准适用于强度参数数据，例如失效时间@周期@应力@等。 . 可用于在测试条件下或使用中@运行的项目的随机样本，用于估计从中抽取这些项目的总体可靠性性能的度量。当所分析的数据独立@同分布时，本标准适用。这应该经过测试或假设为真（参见 IEC 60300-3-5）。在本标准中，描述了数值方法和图形方法来绘制数据@以进行拟合优度检验@以估计二参数或三参数威布尔分布的参数并绘制置信限。指导如何从风险角度解释该图，作为时间@故障模式和可能的弱群体以及首次故障或最小耐力的时间的函数。 [外文原描述]： IEC 61649:2008 provides methods for analysing data from a Weibull distribution using continuous parameters such as time to failure, cycles to failure, mechanical stress, etc. This standard is applicable whenever data on strength parameters, e.g. times to failure, cycles, stress, etc. are available for a random sample of items operating under test conditions or in-service, for the purpose of estimating measures of reliability performance of the population from which these items were drawn. The main changes with respect to the previous edition are as follows: the title has been shortened and simplified to read "Weibull analysis"; and provision of methods for both analytical and graphical solutions have been added.