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Accelerated life tests as an integrated methodology for product design, qualification and production control: a case study in household appliances

机译:加速寿命测试作为产品设计,鉴定和生产控制的综合方法:家用电器案例研究

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Cost reduction and product quality are key factors in the present competitive market. Product reliability is strongly correlated with customer satisfaction. Accelerated life tests (ALTs) represent a methodology able to investigate product reliability performance in a short time with respect to the classical testing methods in the design. The aim of this paper is the proposal and development of an integrated procedure based on ALTs in order to evaluate the reliability performance of a new product; the use of such testing methods is useful to systematically support the design and qualification phases and to help the service demand forecasting before the product launch. The smart choice of the acceleration parameter and the knowledge developed during the upstream phase in the product lifecycle can be useful and cost effective for its utilization in the downstream lifecycle, as an acceptable substitute of specific advanced final inspection methodologies. The methodology has been tested during the development of a new model of washing machine. The application of ALTs was able to stress one of the most important failure modes of the product, returning important validation data for the design phase and qualification phase and giving good expectation for its fruitful utilization for final inspection in production.
机译:降低成本和产品质量是当前竞争市场中的关键因素。产品可靠性与客户满意度密切相关。相对于设计中的传统测试方法,加速寿命测试(ALT)代表一种能够在短时间内调查产品可靠性能的方法。本文的目的是提出和开发基于ALT的集成程序,以评估新产品的可靠性。使用此类测试方法有助于系统地支持设计和鉴定阶段,并有助于在产品推出之前预测服务需求。加速参数的明智选择和产品生命周期上游阶段开发的知识,对于在下游生命周期中的利用,可能是有用且具有成本效益的,可以替代特定的高级最终检查方法。该方法已在新型洗衣机的开发过程中进行了测试。 ALT的应用能够强调产品最重要的失效模式之一,返回设计阶段和鉴定阶段的重要验证数据,并对其在最终生产中的有效利用产生了良好的期望。

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