基于Weibull过程的早期故障排除统计分析法

Statistical Analysis Method for Clearing of Early Failure Based on Weibull Process

将含有早期故障的产品销售出厂,会严重地影响产品的使用可靠性乃至企业的信誉。如何把产品的早期故障排除在出厂之前,是生产企业非常关注的问题。为此,针对某类可修复产品,用Weibull过程描述批产品早期故障暴露的时间历程,并根据可靠性目标值科学地确定其老炼筛选时间,对产品出厂后的可靠性指标做出预评估。

The usage reliability of products and credibility of business would be affected badly if products with early failure were sold, so it is a worthy attentive problem to manufacturers how to clear the early failure of products dispatched from the factory. In this paper, the time history of exposing early failure for batch products was described with Weibull process to a repairable product, and its aging and screening time was determined scientifically according to required reliability value, and the reliability index of products dispatched from the factory were also pre - evaluated.