摘要
本文讲述了对新产品进行可靠性评估的方法,这些产品因为受到环境的影响而失效。本方法适用于有参考产品现场数据、参考产品加速老化数据,并了解由环境引起失效机理的情况。该方法利用可靠性原理和失效机械模型来建立高精度的模型,然后用它来预测新产品的使用寿命。本方法已成功应用于两个实例:一个是采用化学与物理方法证明聚烯烃的现场数据与加速氙灯老化仪所测得的数据具有相关性;另一个是评估乙烯基产品及现场驱动失效的故障模式。所得出的数据结果表明了环境区域风险、整体新产品风险及与现有参考产品的相对风险。
A methodology is presented for the reliability assessment of new product offerings,where product failures are driven by environmental conditions,The methodology is valid for the case of limited related product field data,relate accelerated weathering data and understanding of underlying environmentally driven failure mechanisms.The methodology uses reliability theory in concert with failure mechanistic models to provide high resolution models which can be used to forecast liability exposure of new product offerings.The methodology has been successfully demonstrated for two cases.A polyolefin product where field data and accelerated xenon we3athering are correlated through use of chemical and physical methods.And an evaluation of Vinyl based products and field driven failures.The qualtitative results generated suggest environmental region risks,overall new product risk,and risk relative to exsting related products.
出处
《环境技术》
2007年第5期48-52,共5页
Environmental Technology
