CAJ | 학술논문

针对电子产品在工程实践中受随机冲击应力的影响及多失效模式的问题，以累积冲击和极限冲击来描述产品的冲击过程，考虑失效模式相关性并建立了随机冲击下产品竞争失效模型。以具有自然耗损和突发耗损特点金属化膜脉冲电容器为对象，进行了可靠性对比分析，验证了模型的合理性和有效性，为遭受复合应力影响的电子产品的可靠性评估提供了一种新方法。
침대전자산품재공정실천중수수궤충격응력적영향급다실효모식적문제，이루적충격화겁한충격래묘술산품적충격과정，고필실효모식상관성병건립료수궤충격하산품경쟁실효모형。이구유자연모손화돌발모손특점금속화막맥충전용기위대상，진행료가고성대비분석，험증료모형적합이성화유효성，위조수복합응력영향적전자산품적가고성평고제공료일충신방법。
Aiming to resolve the impact of random shocks and the problem of multiple failure modes among the electronic products in engineering practice,cumulative shock model and extreme shock model are used to describe the process of the product. The dependent of failure modes is taking in to account to establish the competing failure mode under random shocks. The metallized film pulse capacitor with natural wear and abrupt wear characteristics is employ to estimate the life,and the comparison is used to analyze it. The rationality and validity is verified after the estimation. The essay provide a new method to estimate the impact of the electronic products suffering compound stresses.