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首页> 外文期刊>Reliability Engineering & System Safety >Optimal burn-in time and warranty length under fully renewing combination free replacement and pro-rata warranty
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Optimal burn-in time and warranty length under fully renewing combination free replacement and pro-rata warranty

机译：在完全续签组合免费更换和按比例保修的情况下，具有最佳的老化时间和保修期限

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摘要

Warranty is an important factor of marketing products; however, warranty always involves additional costs to the seller and these costs usually depend on product reliability. Burn-in is considered as a part of the production process in which the manufactured products are operated under accelerated stresses for a short time period before their release and has been applied as a way for enhancing product reliability. In the present paper, a cost model is developed to determine the optimal burn-in time and warranty length for non-repairable products under the fully renewing combination free replacement and pro-rata warranty (FRW/PRW) policy. Denoting w as the warranty length of the product, under the FRW/PRW policy, the seller agrees to replace the product that fails prior to the time point w', where w' < w, from the time of purchase with a new product at no cost to the buyer; meanwhile, any failure in the time interval from w' to w results in a pro-rata replacement, i.e., any product is replaced with a new item at pro-rata cost to the buyer. Numerical examples are provided given that the failure time of the product follows either the mixed exponential distribution or the mixed Weibull distribution and four warranty policies are examined. Based on the results of analysis, it is noted that the fully renewing combination FRW/PRW is always better than the fully renewing policy in terms of cost.
机译：保修是营销产品的重要因素；但是，保修始终会给卖方带来额外的费用，而这些费用通常取决于产品的可靠性。老化被认为是生产过程的一部分，在此过程中，制成的产品在释放之前的短时间内要在加速的应力下运行，并已被用作增强产品可靠性的一种方法。在本文中，开发了一种成本模型，以确定在完全续签的免费更换和按比例保修（FRW / PRW）组合政策下，不可维修产品的最佳老化时间和保修期限。根据FRW / PRW政策，用w表示产品的保修期限，卖方同意在购买后的w'

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