Results 41 to 50 of about 27,010 (208)

Preventive Maintenance Optimization of Electric Multiple Units Based on a Bi-Level Imperfect Maintenance Strategy

open access: yesIEEE Access
A preventive maintenance (PM) optimization policy based on a bi-level imperfect maintenance strategy was proposed for electric multiple unit equipment subject to continuous degradation, consistent with actual PM situations.
Lv Xiong   +3 more
doaj   +1 more source

Maintenance Grouping Optimization for Offshore Wind Turbine Considering Opportunities Based on Rolling Horizon Approach

open access: yesPolish Maritime Research, 2018
In future, offshore wind turbines may be consider a crucial part in the supply of energy. Maintenance processes are directed to attain a safe and reliable operation of offshore machines and wind turbines.
Lua Yang   +3 more
doaj   +1 more source

Research on imperfect condition-based maintenance strategy based on accelerated degradation process

open access: yesMeasurement + Control
To address the situation that the degraded system cannot be repaired as new and the degradation is accelerated after repair in engineering practice, an imperfect condition-based maintenance model is proposed based on the Gamma process by introducing the ...
Jintao Chen, Lina Ren, Jianhua Li
doaj   +1 more source

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

open access: yesApplied 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   +6 more
doaj   +1 more source

On the Statistical Modeling and Analysis of Repairable Systems

open access: yes, 2007
We review basic modeling approaches for failure and maintenance data from repairable systems. In particular we consider imperfect repair models, defined in terms of virtual age processes, and the trend-renewal process which extends the nonhomogeneous ...
Lindqvist, Bo Henry
core   +1 more source

A Historical Survey of Corrective and Preventive Maintenance Models with Imperfect Inspections: Cases of Constant and Non-Constant Probabilities of Decision Making

open access: yesAerospace
Maintenance strategies play a crucial role in ensuring the reliability and performance of complex systems. Imperfect inspections, characterized by the probabilities of false positives and false negatives, significantly impact the effectiveness of ...
Vladimir Ulansky, Ahmed Raza
doaj   +1 more source

Preventive maintenance strategy of electric multiple unit critical equipment based on replacement repair

open access: yes机车电传动, 2022
Considering that the entire electric multiple unit (EMU) needs to be withdrawn from service for carrying out preventive maintenance (PM) of the critical equipment, leading to an increase to downtime loss, the concept of replacement repair is proposed in ...
XIONG Lü, LIU Zhilong
doaj  

A study of postponed replacement in a delay time model [PDF]

open access: yes, 2017
We develop a delay time model for a one component system with postponed replacement to analyze situations in which maintenance might not be executed immediately upon discovery of a defect in the system.
Berrade, MD, Cavalcante, CAV, Scarf, PA
core   +6 more sources

An improved opportunity maintenance model of complex system

open access: yesAdvances in Mechanical Engineering, 2019
To solve the problems of multiple parts, high cost of disassembly, and imperfect maintenance in multi-component complex systems, an opportunistic maintenance model of multi-component complex systems based on a time threshold is proposed in this article ...
Qinghe Yuan   +3 more
doaj   +1 more source

Optimization of equipment performance guarantee strategy based on imperfect periodic preventive maintenance [PDF]

open access: yesAIP Advances
Performance guarantee strategy is a procurement method oriented toward achieving equipment performance goals. For two-dimensional warranty equipment employing imperfect periodic preventive maintenance (PM), this study establishes a warranty cost and ...
Xinjian Gao   +6 more
doaj   +1 more source

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