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Multi-factor reliability model: A Bayesian application to accelerated life testing.

机译：多因素可靠性模型：贝叶斯应用程序在加速寿命测试中。

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摘要

Reliability analysis for accelerated life testing (ALT) is a critical process performed to determine the life of a product. The main goal of ALT is to simulate use conditions of a manufactured product. The selection of the model is critical when life prediction is done for highly reliable products which have been exposed to this type of tests. Statisticians, mathematicians and engineers have developed life-stress relationship models that allow the analyst to extrapolate a use level probability density function from life data obtained at increased stress levels. These models describe the path of a particular life characteristic of the distribution from one stress level to another. The life characteristic can be any life measure expressed as a function of stress using different failure distributions. During this work, a flexible reliability model is presented. The model is capable to analyze more than 3 stresses at the same time during ALT tests. Also, the proposed model is capable to analyze the influence that other variables, which are not included in the test, have on the failure times.;Results show the proposed methodology works satisfactorily in reliability analysis for accelerated life testing, comparing those results generated by common existing models.
机译：加速寿命测试（ALT）的可靠性分析是确定产品寿命的关键过程。 ALT的主要目标是模拟制成品的使用条件。当对经受此类测试的高度可靠的产品进行寿命预测时，选择模型至关重要。统计学家，数学家和工程师已经开发出生活压力关系模型，该模型使分析师可以从在压力增加时获得的寿命数据推断出使用水平概率密度函数。这些模型描述了从一种应力水平到另一种应力水平的特定寿命特征分布的路径。寿命特征可以是使用不同失效分布表示为应力函数的任何寿命量度。在这项工作中，提出了一个灵活的可靠性模型。该模型能够在ALT测试期间同时分析3个以上的压力。此外，所提出的模型能够分析未包括在测试中的其他变量对失效时间的影响。结果表明，所提出的方法在加速寿命测试的可靠性分析中令人满意地工作，并比较了由测试得出的结果。常见的现有模型。

著录项

  • 作者

    Rodriguez, Manuel I.;

  • 作者单位

    New Mexico State University.;

  • 授予单位 New Mexico State University.;
  • 学科 Applied Mathematics.;Engineering Industrial.;Statistics.
  • 学位 Ph.D.
  • 年度 2011
  • 页码 136 p.
  • 总页数 136
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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