一种基于加速寿命试验的产品现场可靠性评估新方法

2016 11th International Conference on Reliability, Maintainability and Safety (ICRMS) Pub Date : 2016-10-01 DOI:10.1109/ICRMS.2016.8050035

Guolong Zhang, Junhu Li, Guohui Bao, Busheng Zhang

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引用次数: 1

摘要

加速寿命试验(ALT)是快速评估产品现场可靠性和寿命的主要方法之一。如何利用ALT和野外观测资料提高评估精度是近年来研究的热点问题。提出了一种新的现场可靠性评估方法。首先，从数据融合的角度出发，将现场故障信息与ALT数据相结合，建立更精确的故障模型;其次，通过基于MCMC的贝叶斯分析，快速获得后验参数估计、现场可靠性和寿命，有效降低了模型的计算复杂度;最后，进行了一组全面的实验，结果表明，基于该方法的可靠性和寿命评估更加精确。

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A new method for product field reliability assessment based on accelerated life test

Accelerated life testing (ALT) is one of the major methods of rapidly evaluating product field reliability and life. The topic of how to improve assessment precision using ALT and field observation data has attracted research interest recently. A new method of field reliability assessment is proposed in this paper. Firstly, in view of data fusion, a more accurate model is established by integrating failure information from both the field and ALT data. Secondly, posterior parameter estimation, and field reliability and life are rapidly obtained through Bayesian analysis based on MCMC, which can effectively reduce the computational complexity of the model. Finally, a comprehensive set of experiments is conducted and the results show that reliability and life assessment based on this method is more precise.

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2016 11th International Conference on Reliability, Maintainability and Safety (ICRMS)

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