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On Modeling Bivariate Wiener Degradation Process

机译:关于二抗体维纳劣化过程的建模

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摘要

Modern products are usually designed with high reliability and have complex structures, and degradation analysis of the complex systems with two or multiple performance characteristics is still a challenge. In this paper, we propose a new bivariate degradation model based on the Wiener process. There are three main merits of the proposed model: it can describe the common factor affecting the degradation of the two performance characteristics and unit-to-unit variation simultaneously, the reliability functions of the system and the remaining useful life of the system have analytic forms, and the model parameters and the missing values can be estimated by the Bayesian method and data augmentation. The simulation study and data analysis show that the Bayesian method and the proposed model have satisfactory performance.
机译:现代产品通常设计具有高可靠性,具有复杂的结构,以及两个或多种性能特征的复杂系统的降解分析仍然是一个挑战。 在本文中,我们提出了一种基于维纳工艺的新的双变化劣化模型。 拟议模型有三个主要优点:它可以描述影响两个性能特征和单位对单位变化的劣化的常见因素,系统的可靠性功能和系统的剩余使用寿命具有分析形式 ,并且可以通过贝叶斯方法和数据增强来估算模型参数和缺失值。 仿真研究和数据分析表明,贝叶斯方法和拟议的模型具有令人满意的性能。

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