Bi-objective optimization of basic and extended warranty policies regarding preventive maintenance and burn-in policies:
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ORIGINAL RESEARCH
Bi‑objective optimization of basic and extended warranty policies regarding preventive maintenance and burn‑in policies: Weibull bathtub‑shaped failure rate Seyed Mohammad Majidi1 · Amin Yazdekhasti2 · Azade Yousefi3 Received: 27 March 2019 / Accepted: 15 April 2020 © Society for Reliability and Safety (SRESA) 2020
Abstract Today’s after-sales services play an important role in the competitive market for product manufacturing and supply. The manufacturer, as the provider of basic warranty and third-party companies specializing in maintenance as extended warranty provider, seeks to minimize their costs, as well as improve product quality and customer attraction. In this regard, the application of burn-in policies can help the producer and the third-parties to achieve this. In this paper a nonlinear programming model is developed to (1) minimizing the total maintenance costs during the basic warranty and burn-in periods and (2) minimizing the total maintenance costs during the extended warranty period. Due to the complexity of the model, the multi-objective meta-heuristic solution approach is proposed based on a scatter search algorithm and variable neighborhood search algorithm. The optimization results showed that the application of burn-in policies by the manufacturer reduces the cost of preventive and corrective maintenance for the manufacturer and the third party. Also, the lack of a computational gap between the proposed solution approach and the exact solution method indicates the high efficiency of the proposed solution procedure through optimization of the research problem. Keywords Extended warranty · Burn-in · Preventive maintenance · Weibull bathtub-shaped failure rate · Scatter search algorithm · Variable neighborhood search algorithm
1 Introduction By increasing the customers’ expectations, warranty is considered one of the most important elements for marketing, in today’s world. Giving warranties can lead to acquiring a competitive advantage for the manufacturer against their increased service costs. Warranty is considered as the guarantee policy or the maintenance contract, and it is categorized into base warranty and extended warranty. Since the base warranty is similar for the manufacturers of specific * Seyed Mohammad Majidi [email protected] 1
Department of Industrial Engineering, Islamic Azad University-Najafabad Branch, Najafabad, Iran
2
Department of Industrial Engineering, Daneshpajoohan Pishro Higher Education Institute, Isfahan, Iran
3
Department of Industrial Engineering, Faculty of Engineering, Isfahan University of Technology, Isfahan, Iran
classes of products, the warranty conditions do not usually have a great role in purchasing decisions by the consumers. In contrast, the extended warranty has entered into the competitive domain of the producers and is among the main service package elements for the consumers. Due to developments in technology and more competitive markets in recent years, producers are looking for acquiring more competitive adv
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