低温泵现场使用可靠性评价及维修保障方法.pdf

Vol 34 No. 3
第34卷第3期
36
SPACECRATT ENVIRONMIENT ENGNEERING
2017年6月
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低温泵现场使用可靠性评价及维修保障方法
闫琦,黄小凯2,张立海2,刘守文
(1.北京甲星环境工程研究所:2.航天机电产品环境可靠性试验技术北京市重点实验室:北京100094)
摘要:结合北京卫星环境工程研究所现有低温泵使用情况,建立低温泵任务可靠性模型,开展低温
泵FMEA。对2009年2015年的低温泵故障数据进行收集和整理,采用直方图法进行现场故障率和
MTBF估计,评估低温泵现场使用可靠性水平;又通过基于P-P理论的寿命分布假设检验方法,获得低
温泵现场使用寿命分布特征。根据现场可靠性分析结果并结合多年维修保障经验,给出了低温泵使用过
程中常见故障的维修保证流桯及方法,有助于后续真空热试验的连续实施。
关键词:低温泵;现场故障;故障率;可靠性;维修保障
中图分类号:V37
文献标志码:B
文章编号:1673-1379(2017)03-0336-07
DOI:10.3969/.SSn.167.3-1379.2017.03.019
Cryopump field reliability assessment and maintenance support method
YAN Qi2, HUANG Xiaokai, ZHANG Lihai 2, LIU Shouwen 2
(1. Beijing Institute of Spacecraft Environment Engineerin
2. Beijing Key Laboratory of Environment Reliability Test Technology
Aerospace Mechanical Electrical Products: Beijing 100094, China)
Abstract: Based on the conditions of the cryopump application in Beijing Institute of Spacecrall
Environment Engineering, this paper establishes reliability models for cryopump tasks, and carries out the
FMEA on the cryopumps. Upon collection and organi/ation of the failure data of the cryopumps during the year
2009 to 2015, an estimation is given of the field failure rate and the MTBF in the form of histogram, and th
reliability level of the cryopump in field use is assessed. In addition, based on the P-P theory of the lifetime
distribution hypothesis, the lifetime distribution charactcristics of thc cryopumps arc obtaincd. Bascd on the ficld
reliability analysis and in light of thc maintenancc support cxpcricnccs over thc ycars, wc providc rclcvant
processes and methods or the maintenance of common Failures of cryopumps in their subsequent use to ensure
thc continuous implementation of the thcrmal vacuum tcst
Key words: cryopump; ficld failure, failure ratc, reliability; maintenance support
收稿日期:2016-05-18:修回日期:2017-06-07
引用格式:時,黄小觊,张立液,紙温泵现师使用可葬性评价及盤修保障方法.天お环工躍2017,343)
36-342
DNQ, HUAN(X K, ZHNG I H, et al. Comm field reliabilit assessment and maintenance por method Spacecraf
Environment Engineering, 2017, 34(3): 336-042
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