Bi-objective optimization of basic and extended warranty policies regarding preventive maintenance and burn-in policies: Weibull bathtub-shaped failure rate

Majidi, Seyed Mohammad; Yazdekhasti, Amin; Yousefi, Azade

doi:10.1007/s41872-020-00128-x

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…Failure rate : The failure rate of the system usually depends on the variable of time and will change throughout the life cycle, which meets the bathtub curve (Ahsan et al., 2020; Majidi et al., 2020), as shown in Figure 2. Items in the same batch of in-service equipment have passed strict technical tests and qualifications before leaving the factory.…”

Section: Literature Reviewmentioning

confidence: 96%

The reliability prediction of torpedo electronic components in service life

Liang

Zhang

2021

J. Navigation

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For torpedo electronic components tested by functional verification, there are characteristics of a few samples and few failures. During service life, it is difficult to analyse and predict the changes in reliability. At present, management's observation of quality is mainly base on failure data, and it is difficult to make predictions about the moments without failure in service life. In this paper, according to the failure data, we consider such factors as performance degradation and detection and use the model of instantaneous failure rate to evaluate the reliability of the detection moments periodically, and predict the reliability of stages through the results of detection moments. The method proposed in this paper, on the one hand, considers the service experience, and on the other combines the detection data, to make the final evaluation result more credible. In addition, this paper predicts the changing trend of reliability between adjacent detection moments, which can provide a useful reference for quality management work.

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Section: Literature Reviewmentioning

confidence: 96%

The reliability prediction of torpedo electronic components in service life

Liang

Zhang

2021

J. Navigation

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“…Step 4. According to equation (11), the direct maintenance cost C zin of component i in the complete maintenance cycle from t n to t n+1 is calculated; based on Equation (16), the shutdown loss caused by the nth PM of the system is calculated; finally, the minimal repair shutdown loss of the system can be obtained according to equation (18).…”

Section: Solution Procedures Of the Om Model For The Multi-component Systemmentioning

confidence: 99%

“…erefore, optimizing the maintenance strategy to reduce the maintenance cost during the warranty period is well worthy of research. Warranty can be divided into two categories according to the time sequence: base warranty (BW) and extended warranty (EW) [11]. BW is usually provided by the manufacturers as an essential part of the sale price of products [12].…”

Section: Introductionmentioning

confidence: 99%

Reliability-Based Opportunistic Maintenance Modeling for Multi-Component Systems with Economic Dependence under Base Warranty

Wang

Cheng

Dong

et al. 2021

Discrete Dynamics in Nature and Society

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Maintenance usually plays a key role in controlling a multi-component production system within normal operations. Furthermore, the failure of components in the production system will also cause large economic losses for users due to the shutdown. Meanwhile, manufacturers of the production system will be confronted with the challenges of the warranty cost. Therefore, it is of great significance to optimize the maintenance strategy to reduce the downtime and warranty cost of the system. Opportunistic maintenance (OM) is a quite important solution to reduce the maintenance cost and improve the system performance. This paper studies the OM problem for multi-component systems with economic dependence under base warranty (BW). The irregular imperfect preventive maintenance (PM) is performed to reduce the failure rate of components at a certain PM reliability threshold. Moreover, the OM optimization model is developed to minimize the maintenance cost under the optimal OM reliability threshold of each component. A simulated annealing (SA) algorithm is proposed to determine the optimal maintenance cost of the system and the optimal OM threshold under BW. Finally, a numerical example of a belt conveyor drive device in a port is introduced to demonstrate the feasibility and advantages of the proposed model in maintenance cost optimization.

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A study on two‐dimensional warranty with a preventive maintenance policy under burn‐in or run‐in

Huang,

Fang,

Kuo

2024

Appl Stoch Models Bus & Ind

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Products are often offered with warranties, which have become a common marketing strategy intended to indicate that product quality is guaranteed by the firm. Warranties can attract consumer purchases, but they also incur warranty costs, especially when firms falsely claim that their products are high quality; therefore, the determination of an appropriate warranty policy is of particular importance. This study considers a two‐dimensional warranty for complex repairable products, such as a vehicle, a lathe, or industrial machinery, with consideration of (1) burn‐in (run‐in), which is a supervised accelerating testing process performed before product launch to prevent defective products from being sold on the market, and (2) periodic preventive maintenance, which is performed during the usage period to prevent the occurrence of unexpected failures under normal usage conditions. The optimal burn‐in (run‐in) time and preventive maintenance intervals are determined with the aim of minimizing warranty costs for firms. The results of the study show that given a higher repair cost and a greater infant mortality failure rate, more frequent preventive maintenance is preferable, and the repair cost has the largest effect on the total warranty cost for the firm.

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Bi-objective optimization of basic and extended warranty policies regarding preventive maintenance and burn-in policies: Weibull bathtub-shaped failure rate

Cited by 3 publications

References 27 publications

The reliability prediction of torpedo electronic components in service life

The reliability prediction of torpedo electronic components in service life

Reliability-Based Opportunistic Maintenance Modeling for Multi-Component Systems with Economic Dependence under Base Warranty

A study on two‐dimensional warranty with a preventive maintenance policy under burn‐in or run‐in

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