Warranty cost analysis: Increasing warranty repair times

Sarah Marshall*, Richard Arnold, Stefanka Chukova, Yu Hayakawa


研究成果: Article査読

17 被引用数 (Scopus)


In this study, we model the warranty servicing costs under nonrenewing and renewing free repair warranties. We assume nonzero increasing repair times with the warranty cost depending on the length of the repair time. An increasing geometric process is used to model the consecutive repair times. We introduce the generalised alternating renewal process, which is an alternating process with cycles consisting of an item's operational time followed by the corresponding repair time. We derive analytical results for a generalised alternating renewal process with a finite time horizon and use them to evaluate the warranty costs over the warranty period and over the life cycle of the product under the nonrenewing free repair warranty and renewing free repair warranty. Properties of the model are demonstrated through a simulation study and through the application to warranty claims data from an automotive manufacturer.

ジャーナルApplied Stochastic Models in Business and Industry
出版ステータスPublished - 2018 7月 1

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • ビジネス、管理および会計(全般)
  • 経営科学およびオペレーションズ リサーチ


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