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 Degradation Modeling and Reliability Assessment for A Multi-Component System with Structural Dependence
Tác giả hoặc Nhóm tác giả: Author links open overlay panelDuc-Hanh Dinh, Phuc Do, Benoit Iung
Nơi đăng: Computers & Industrial Engineering; Số: 106443;Từ->đến trang: 106443;Năm: 2020
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT

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.
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