Results 11 to 20 of about 1,626,687 (308)

A Transformer Maintenance Interval Optimization Method Considering Imperfect Maintenance and Dynamic Maintenance Costs

Applied Sciences
As one of the most critical components of the power grid system, transformer maintenance strategy planning significantly influences the safe, economical, and sustainable operation of the power system. Periodic imperfect maintenance strategies have become
Jianzhong Yang, Hongduo Wu, Yue Yang, Xiayao Zhao, Hua Xun, Xingzheng Wei, Zhiqi Guo   +6 more
doaj   +2 more sources

Piecewise deterministic Markov process for condition-based imperfect maintenance models [PDF]

Reliability Engineering & System Safety, 2022
In this paper, a condition-based imperfect maintenance model based on piecewise deterministic Markov process (PDMP) is constructed. The degradation of the system includes two types: natural degradation and random shocks.
Wei-Kai Wang, Xian Chen
semanticscholar   +1 more source

A comprehensive framework from real‐time prognostics to maintenance decisions

IET Collaborative Intelligent Manufacturing, 2021
Studying the influence of imperfect prognostics information on maintenance decisions is an underexplored area. To bridge this gap, a new comprehensive maintenance support system is proposed. First, a survival theory‐based prognostics module employing the
Amit Kumar Jain, Maharshi Dhada, Marco Perez Hernandez, Manuel Herrera, Ajith Kumar Parlikad   +4 more
doaj   +1 more source

Selective Maintenance Optimization Modelling for Multi-State Deterioration Systems Considering Imperfect Maintenance

IEEE Access, 2019
Motivated by the need to reduce the maintenance cost and improve the system reliability, the issue of selective maintenance has attracted much attention in the industrial and military fields.
Yusheng Wang, Ehsan Elahi, Lei Xu
doaj   +1 more source

Imperfect Preventive Maintenance Policies With Unpunctual Execution [PDF]

IEEE Transactions on Reliability, 2020
Traditional maintenance planning problems usually presume that preventive maintenance (PM) policies will be executed exactly as planned. In reality, however, maintainers often deviate from the intended PM policy, resulting in unpunctual PM executions that may reduce maintenance effectiveness.
Xiaolin Wang 0005, Hang Zhou, Ajith Kumar Parlikad, Min Xie 0001   +3 more
openaire   +1 more source

Redundancy System Fault Sampling Under Imperfect Maintenance

Chemical Engineering Transactions, 2013
When conducting simulation for evaluating complex system reliability or availability, method of random sampling is applied to simulate fault occasion of complex system.
C. Zhang, L. Guo, B. Xiao, R. Kang
doaj   +1 more source

Replacement and Maintenance Decision Analysis for Hydraulic Machinery Facilities at Reservoirs under Imperfect Maintenance

Energies, 2020
After the long-term operation of reservoir facilities, they will become nonoperational due to the material deterioration and the performance degradation.
Sou-Sen Leu, Tao-Ming Ying
doaj   +1 more source

Imperfect Preventive Maintenance Optimization with Variable Age Reduction Factor and Independent Intervention Level

Applied Sciences, 2023
Maintenance policies are crucial for ensuring the reliability, safety, and longevity of a system, as well as reducing the risk of accidents. Preventive maintenance (PM) is an effective strategy to keep equipment and systems in good working order by ...
Fabio Henrique Pereira, Arthur Henrique de Andrade Melani, Fabio Norikazu Kashiwagi, Tiago Gaspar da Rosa, Uerviton Silva dos Santos, Gilberto Francisco Martha de Souza   +5 more
doaj   +1 more source

Optimal block replacement policy for two-dimensional products considering imperfect maintenance with improved Salp swarm algorithm

Open Physics, 2022
Human society is entering Industry 4.0. Engineering systems are becoming more complex, which increases the difficulties in maintenance support work. Maintenance plays a very important role in the entire life cycle of a system, and in reality, maintenance
Dong Enzhi, Cheng Zhonghua, Shuai Yue, Zhao Jianmin   +3 more
doaj   +1 more source

First hitting time distribution and cost assessment in a two-unit system with dependent degradation processes subject to imperfect maintenance

Proceedings of the Institution of Mechanical Engineers. Part O, Journal of risk and reliability, 2023
This paper proposes a degradation model for a two-unit series system, where the components exhibit dependence and are subject to imperfect maintenance. The interdependence between both components is captured using the trivariate reduction method.
L. Bautista, I. T. Castro, Christophe Bérenguer, O. Gaudoin, Laurent Doyen   +4 more
semanticscholar   +1 more source