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首页> 外文期刊>International Journal of Materials, Mechanics and Manufacturing >Mechanical Products ReliabilityAssessment Based on the Structural Performance Degradation Data
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Mechanical Products ReliabilityAssessment Based on the Structural Performance Degradation Data

机译：基于结构性能退化数据的机械产品可靠性评估

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摘要

During mechanical products are in the process oftesting or running, a number of key components will be wearingand aging, resulting in some sizes or gaps change. This kind ofphenomena can be called the structural degradation. In order toobtain the degradation data, we need to dismantle and inspectthe product in a planned way, which is usually a very complexwork. However, it’s seldom to carry out the research workbased on structural degradation data in the research field ofreliability assessment and life prediction. In this paper, thestructural degradation data are described as a linear stochasticprocess model, considering the failure mechanism of theproduct, the reliability function can be obtained. At last anumerical example of a marine steam turbo-generator (MSTG)is given to illustrate the efficiency of this model.
机译：机械产品在测试或运行过程中，许多关键组件会磨损和老化，从而导致某些尺寸或间隙发生变化。这种现象可以称为结构退化。为了获得降级数据，我们需要以计划的方式拆卸和检查产品，这通常是非常复杂的工作。但是，很少在可靠性评估和寿命预测的研究领域中基于结构退化数据进行研究工作。本文将结构退化数据描述为线性随机过程模型，考虑产品的失效机理，可以获得可靠性函数。最后给出了船用蒸汽涡轮发电机（MSTG）的算例，以说明该模型的有效性。

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