摘要
密封电子元器件与装置作为航天系统中的重要组成部分,具有高精密性、高可靠性以及高复杂性的典型特点,而多余物问题是严重影响其高可靠性的主要因素之一。随着航天技术的快速发展,多余物检测技术也在不断改进与深入。该文以认识多余物、控制多余物产生以及检测多余物为主线,围绕多余物的防控方法、检测方法、检测标准进行综合论述。着重分析了检测方法中的颗粒碰撞噪声检测(PIND)方法,分别从小型元器件多余物检测、中大型装置多余物检测两个角度,针对现有研究进展逐一进行了详细的介绍。在此基础上,结合现有国内多余物检测研究的现状,针对多余物检测的难点与未来发展趋势进行归纳,并提出了期望与目标。
As critical components in aerospace systems,sealed electronic components and devices have high precision,reliability,and complexity.One of the major variables affecting their high reliability is the issue of loose remainders,which are almost impossible to avoid altogether.Therefore,mitigating the impact of loose remainders is necessary.With the rapid development of aerospace technology,loose remainder detection techniques have been improved and refined.This paper comprehensively discusses preventive and control methods,detection techniques,and detection standards for loose remainders.Moreover,future competitive points,challenges,and prospects for PIND(particle impact noise detection)products and technologies are presented.Firstly,the definition of loose remainders from external sources is introduced.Loose remainders can be categorized into macroscopic and microscopic loose remainders by size.The preliminary classification is introduced according to historical aerospace events that led to launch delays or failures by loose remainders.The main categories are loose remainders remaining or obstructing internal engine pipes,loose remainders causing inadequate sealing or valve closure,and loose remainders leading to electrical control failures.Secondly,the paper focuses on preventing and controlling loose remainders.There are three approaches for controlling and preventing loose remainders:(1)Cause-and-effect diagram representation;(2)Discovery and trace-back investigation methods;(3)Control process and functional integration methods.Five methods are often used to detect loose remainders:microscopic inspection,radiographic inspection,MATRA inspection,particle impact noise detection(PIND)method,and direct extraction and identification method.The history and development of the PIND method is discussed from the detection aspects of small-sized components and medium-to-large-sized devices.With increasing demands and specialized applications,intelligent detection data algorithms,high reliability of products,diverse functionalities,and customization have become new competitive points.Furthermore,innovation and development in loose remainder detection technologies are crucial.Finally,standards and future development related to loose remainders and the PIND method are discussed.An overview loose remainder detection's overall status and future development is presented.
作者
李鹏飞
翟国富
孙志刚
王国涛
赵相江
Li Pengfei;Zhai Guofu;Sun Zhigang;Wang Guotao;Zhao Xiangjiang(Institute of Reliability in Electrical Apparatus and Electronics Harbin Institute of Technology,Harbin 150001 China;Electronic Engineering College Heilongjiang University,Harbin 150080 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2024年第10期3152-3179,3217,共29页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(51607059)
黑龙江省重点研发计划(2022ZX03A06)资助项目。
