组合类产品筛选试验通用工装设计  

Design of General Tool for Screening Test of Combined Products

作　　者：董智远 李飞飞 李建伍 DONG Zhi-yuan;LI Fei-fei;LI Jian-wu(Aerospace Science&Industry Corp Defense Technology R&T Center,Beijing 100854)

机构地区：[1]航天科工防御技术研究试验中心,北京100854

出　　处：《装备环境工程》2022年第3期64-71,共8页Equipment Environmental Engineering

摘　　要：目的 提高组合类产品在进行环境应力筛选随机振动试验时的试验效率,规范无工装产品的安装固定方式及试验方法,降低试验人员的体力消耗,保障试验的安全和质量。方法 通过设计通用工装,并对工装进行仿真分析和试验验证,保证工装具备通用性的同时,满足振动控制曲线允差符合相关标准的要求。结果经过试验验证,通用工装满足尺寸小于600 mm×500 mm×800 mm、外形规则样品的安装需求。振动控制曲线功率谱密度允差不大于±3 dB,均方根加速度不大于±1.5 dB,且工装整体的均匀度良好,每台样品与压板刚性连接处的均方根加速度与控制曲线均方根加速度的偏差不大于±1.5 dB。结论 使用通用工装进行环境应力筛选试验,试验方法符合GJB 1032—90《电子产品环境应力筛选方法》中的要求。This paper aims to improve the test efficiency of combined products in random vibration test of environmental stress screening, standardize the installation and test methods of products without tooling, reduce the physical consumption of test personnel, and ensure the safety and quality of the test. Through the design of general tooling, simulation analysis and test verification of the tool are carried out to ensure that vibration control curve tolerance meets the requirements of relevant standards. The test results show that the general tooling can meet the installation requirements of samples with size less than 600mm× 500 mm× 800 mm and regular shape. The tolerance of PSD of the vibration control curve is not more than ± 3 dB, RMS is not more than ± 1.5 dB, and the overall uniformity of tooling is good. The deviation between RMS of a rigid connection between each sample and pressing plate and RMS of control curve is not more than ± 1.5 dB. The environmental stress screening test is carried out with general tooling, and the test method met the requirements of the GJB 1032—90 “Environmental Stress Screening Method for Electronic”.

关 键 词：环境应力筛选 随机振动 通用工装 

分 类 号：V216.5[航空宇航科学与技术—航空宇航推进理论与工程]