Maintenance strategies following the expiration of warranty

Şahin, İzzet; Polatoglu, Hakan

doi:10.1109/24.510805

Cited by 85 publications

(22 citation statements)

References 8 publications

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“…This problem is relatively old, dating back to the early work of Barlow and Hunter [2], Derman and Sacks [9], and Klein [19]. However, the inclusion of warranties in maintenance planning and analysis decisions is fairly new, but evolving [5,11,25,31,41,42]. The relative costs involved in warranty and maintenance decisions are shown in Figure 3.…”

Section: Warranty and Maintenance Decisionsmentioning

confidence: 97%

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Engineering Economic Decisions and Warranties

Thomas

2005

The Engineering Economist

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Section: Warranty and Maintenance Decisionsmentioning

confidence: 97%

“…A warranty with the new equipment will also offset maintenance cost for some time period as well. Theoretical conditions for deciding at the expiration of a warranty on the alternatives of doing nothing, replacing the item, or investing in an extended warranty can be found in Sahin and Polatoglu [31].…”

Section: Repair Versus Replacementmentioning

confidence: 99%

Engineering Economic Decisions and Warranties

Thomas

2005

The Engineering Economist

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“…Then, the virtual age of the product at the warranty expiration is equal to x + y ( x ) and can be evaluated by taking the inverse function of h α ( x + w ( x )) with respect to the initial failure rate h 0 (·) as follows:

x + y ((), x) = h_{0}^{- 1} ((), h_{α} ((), x + w ((), x))) = h_{0}^{- 1} ({}, normaln normalα ({}, h_{0} ((), x + ξ) - h_{0} ((), x)) + h_{0} ((), x)) .

Note that the calendar age of the product under consideration is always equal to x + w ( x ) when the warranty expires and the virtual age is between x and x + w ( x ). Sahin and Polatoglu assert that the virtual age affects the optimal maintenance period length significantly and Finkelstein gives an excellent explanation of the virtual age.…”

Section: Warranty and Post‐warranty Maintenance Policymentioning

confidence: 99%

Maintenance optimization for second‐hand products following periodic imperfect preventive maintenance warranty period

Lim

Kim

Park

2019

Appl Stoch Models Bus & Ind

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The maintenance policy for a product's life cycle differs for second‐hand and new products. Although several maintenance policies for second‐hand products exist in the literature, they are rarely investigated with reference to periodic inspection and preventive maintenance action during the warranty period. In this research, we study an optimal post‐warranty maintenance policy for a second‐hand product, which was purchased at age x with a fixed‐length warranty period. During the warranty period, the product is periodically inspected and maintained preventively at a prorated cost borne by the user, while any product failure is only minimally repaired by the dealer. After the warranty expires, the product is self‐maintained by the user for a fixed‐length maintenance period and the costs incurred during this time are fully borne by the user. At the end of the maintenance period, the product is replaced with a product of the user's choice. This study is focused on the determination of an optimal length for the maintenance period after the warranty expiration. As a criterion for the optimality, we adopt the long‐run mean cost during the second‐hand product's life cycle from the user's perspective. Finally, our results are analyzed numerically for sensitive analysis of several relevant factors, assuming that the failure distribution follows a Weibull distribution.

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“…Patankar and Worm (1981) computed prediction intervals for the total warranty costs. Balcer and Sahin (1986), Sahin and Polatlioglu (1996), and Polatlioglu and Sahin (1998) studied the moments and probability distribution of warranty costs. Chukova and Hayakawa (2004) evaluated the warranty costs when the cost of each warranty claim depends on the length of repair time.…”

Section: Literature Reviewmentioning

confidence: 99%

Dynamic Cash Management of Warranty Reserves

Gurgur

2011

The Engineering Economist

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The objective in warranty reserve management is to cover contingent liabilities that arise from warranty obligations. Maintaining excess reserves would cause opportunity cost, whereas depleting the reserve would necessitate finding emergency funds. In this article we propose a policy rule to guide cash management of warranty reserves for an infinite horizon that involves periodic reviews. At the beginning of each period the decision maker determines how much to add to or subtract from the fund and how much to contribute after each sale. Numerical examples show how the optimal control variables change in response to change in problem parameters.

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Maintenance strategies following the expiration of warranty

Cited by 85 publications

References 8 publications

Engineering Economic Decisions and Warranties

Engineering Economic Decisions and Warranties

Maintenance optimization for second‐hand products following periodic imperfect preventive maintenance warranty period

Dynamic Cash Management of Warranty Reserves

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