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Degradation Modeling and Reliability Assessment for A Multi-Component System with Structural Dependence
Computers & Industrial Engineering ( IF 6.7 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.cie.2020.106443
Duc-Hanh Dinh , Phuc Do , Benoit Iung

Abstract Structural dependence between components within industrial architecture implies that components structurally form a connected set (a block), and the maintenance of a component requires disassembly of some other components in order to reach it. In that way, the disassembly operations for maintenance may have a significant impact on the degradation processes of the disassembled components. The potential failure risk of these components will be underestimated if this impact is ignored. Therefore, the aim of this paper is to investigate the impact of disassembly operations on the degradation processes and reliability of the components/system. The disassembly operations and their impact on the components’ degradation processes are firstly analyzed. Next, a model based on connections matrix is proposed to quantify the impact of disassembly operations on the degradation processes of the components. The proposed model allows considering different influencing factors such as the property of the component, the strength of the connection between the components as well as the degree of expertise of the technician and tool used to perform the disassembly operations. Then, the impact of disassembly operations on the system reliability is analyzed and formulated for a multi-component. Finally, a numerical example of a gearbox system is introduced to illustrate the use and the advantages of the proposed models in reliability assessment and maintenance optimization framework.

中文翻译:

具有结构依赖性的多组件系统的退化建模与可靠性评估

摘要 工业体系结构中组件之间的结构依赖意味着组件在结构上形成一个连接集(一个块),一个组件的维护需要拆卸其他一些组件才能到达它。这样,维修的拆卸操作可能会对拆卸后的部件的退化过程产生重大影响。如果忽略这种影响,这些组件的潜在故障风险将被低估。因此,本文的目的是研究拆卸操作对组件/系统的退化过程和可靠性的影响。首先分析了拆卸操作及其对部件退化过程的影响。下一个,提出了一种基于连接矩阵的模型来量化拆卸操作对组件退化过程的影响。所提出的模型允许考虑不同的影响因素,例如组件的属性、组件之间的连接强度以及用于执行拆卸操作的技术人员和工具的专业知识程度。然后,分析并制定了多组件拆卸操作对系统可靠性的影响。最后,介绍了一个齿轮箱系统的数值例子,以说明所提出的模型在可靠性评估和维护优化框架中的使用和优势。所提出的模型允许考虑不同的影响因素,例如组件的属性、组件之间的连接强度以及用于执行拆卸操作的技术人员和工具的专业知识程度。然后,分析并制定了多组件拆卸操作对系统可靠性的影响。最后,介绍了一个齿轮箱系统的数值例子,以说明所提出的模型在可靠性评估和维护优化框架中的使用和优势。所提出的模型允许考虑不同的影响因素,例如组件的属性、组件之间的连接强度以及用于执行拆卸操作的技术人员和工具的专业知识程度。然后,分析并制定了多组件拆卸操作对系统可靠性的影响。最后,介绍了一个齿轮箱系统的数值例子,以说明所提出的模型在可靠性评估和维护优化框架中的使用和优势。分析并制定了多部件拆卸操作对系统可靠性的影响。最后,介绍了一个齿轮箱系统的数值例子,以说明所提出的模型在可靠性评估和维护优化框架中的使用和优势。分析并制定了多部件拆卸操作对系统可靠性的影响。最后,介绍了一个齿轮箱系统的数值例子,以说明所提出的模型在可靠性评估和维护优化框架中的使用和优势。
更新日期:2020-06-01
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