HALT试验方法在数字化仪控设备研制中的应用  

Application of HALT Test Method in Development of Digital Instrument and Control Equipment

作　　者：张洧川 赵辉 秦帆 赵阳[1] 青先国[1] 陈杰[1] 何小鹏 Zhang Weichuan;Zhao Hui;Qin Fan;Zhao Yang;Qing Xianguo;Chen Jie;He Xiaopeng(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213

出　　处：《核动力工程》2021年第S02期99-103,共5页Nuclear Power Engineering

摘　　要：为了解决数字化仪控设备在设计阶段无法规避其潜在故障模式,传统研制试验方法无法模拟设备在全寿命周期内的环境剖面和任务剖面,以及在研制阶段无法暴露设备部分故障模式的问题,提出对适应性精简后的某型数字化仪控设备开展高加速极限试验(HALT)试验,并借鉴国外大量类似试验的统计结果和设备环境适应性要求制定了衡量故障改进必要性的应力水平范围判据;同时结合相似仪控设备应用经验反馈对试验方案进行了调整;最后结合目标设备已有的机内测试(BIT)检测手段配套开发了实时状态监测和故障分析工具,配套完成试验开展过程中的实时监测和辅助失效分析。试验结果表明,定制化调整后的试验方法可有效地暴露和复现该典型数字化仪控设备的潜在故障,可操作性较强,可应用于其他相似的仪控设备。In order to solve the following questions that digital instrument and control equipment cannot avoid its potential failure mode in the design stage,traditional development and test methods cannot simulate the environment profiles and task profiles of the equipment in the whole life cycle,some failure modes of the equipment cannot be exposed in the development stage,this paper proposes to carry out a HALT test on a certain type of digital instrument and control equipment after adaptive simplification.Based on the statistical results of a large number of similar tests abroad and the requirements of equipment environmental adaptability,the criterion of stress level range to measure the necessity of fault improvement is formulated;At the same time,combined with the experience feedback of similar instrument and control equipment,the test scheme is adjusted;Finally,combined with the existing BIT testing methods of the target equipment,a real-time condition monitoring and fault analysis tool is developed to complete the real-time monitoring and auxiliary failure analysis in the test process.The experimental results show that the customized test method can effectively expose and reproduce the potential faults of this typical digital instrument and control equipment,and the method can be applied to other similar instrument and control equipment with strong operability.

关 键 词：数字化仪控设备 高加速极限试验(HALT) 间歇性故障 故障改进 机内测试(BIT) 试验方案改进 

分 类 号：TL374[核科学技术—核技术及应用]