系统工程与电子技术 ›› 2023, Vol. 45 ›› Issue (11): 3706-3713.doi: 10.12305/j.issn.1001-506X.2023.11.40

• 可靠性 • 上一篇    

基于关键质量特性的高效环境应力筛选方法

张安琪1,*, 张生鹏1,2, 李宏民1,2, 朱耀1, 米思坤1   

  1. 1. 航天科工防御技术研究试验中心, 北京 100854
    2. 北京航空航天大学可靠性与系统工程学院, 北京 100191
  • 收稿日期:2023-01-01 出版日期:2023-10-25 发布日期:2023-10-31
  • 通讯作者: 张安琪
  • 作者简介:张安琪 (1997—), 女, 助理工程师, 硕士, 主要研究方向为环境试验技术、质量与可靠性
    张生鹏 (1984—), 男, 高级工程师, 博士研究生, 主要研究方向为环境试验技术、质量与可靠性
    李宏民 (1976—), 男, 研究员, 博士研究生, 主要研究方向为环境试验技术、质量与可靠性
    朱耀 (1983—), 男, 高级工程师, 博士, 主要研究方向为质量与可靠性分析、试验技术
    米思坤 (1989—), 男, 工程师, 硕士, 主要研究方向为质量管理

Efficient environmental stress screening method based on key quality characteristic

Anqi ZHANG1,*, Shengpeng ZHANG1,2, Hongmin LI1,2, Yao ZHU1, Sikun MI1   

  1. 1. Aerospace Science and Industry Defense Technology Research Testing Center, Beijing 100854, China
    2. School of Reliability and Systems Engineering, Beihang University, Beijing 100191, China
  • Received:2023-01-01 Online:2023-10-25 Published:2023-10-31
  • Contact: Anqi ZHANG

摘要:

环境应力筛选依据环境试验标准规定的试验条件和程序开展试验, 剔除失效产品, 使产品尽快度过早期失效期。针对当前高可靠的制造背景下在筛选过程中发现的失效产品数量少、效费比低的问题, 提出了一种环境应力筛选方案设计流程。首先, 基于应力-强度干涉模型明晰了筛选的基本原理, 分析了筛选应力及强度分散性对筛选效果的影响; 其次, 结合关键质量特性的识别与测量、分散性分析, 制定了筛选方案的设计流程; 最后, 以某天线罩的筛选为例验证了所提方法的有效性。该方法为提高筛选效率、降低筛选成本提供了思路。

关键词: 筛选, 关键质量特性, 失效率, 应力-强度干涉模型, 分散性

Abstract:

According to the test conditions and procedures specified in the environmental test standards, the early failure products are eliminated through the environmental stress screening, so that the products can pass the early failure period as soon as possible. Under the current high reliability manufacturing background, the number of failed products found in the screening process is small and the efficiency cost ratio is low, a design process of environmental stress screening scheme is proposed. The basic principle of screening is clarified based on the stress-strength interference model, and the influence of screening stress and intensity dispersion on screening effect is analyzed. Secondly, considering the identification and measurement of key quality characteristic and dispersion analysis, the design process of screening scheme is formulated. Finally, the effectiveness of the proposed screening method is verified by using a certain radome as an example. The proposed method provides ideas for improving screening efficiency and reducing screening costs.

Key words: screening, key quality characteristic, failure rate, stress-strength interference model, dispersion

中图分类号: