航天器环境工程
航天器環境工程
항천기배경공정
SPACECRAFT ENVIRONMENT ENGINEERING
2014年
3期
306-310
,共5页
关键事件%单点故障%识别方法%交会对接
關鍵事件%單點故障%識彆方法%交會對接
관건사건%단점고장%식별방법%교회대접
critical incident%single point failure (SPF)%identification method%rendezvous and docking(RVD)
系统级单点故障严重影响航天器任务的成败。为全面识别系统级单点故障模式,文章提出了基于时域空域分析、故障树分析(FTA)和故障模式影响分析(FMEA)相结合的关键事件系统级单点故障识别方法,并在交会对接任务中得到了应用。通过对识别的单点故障模式相关设备采取在轨补偿措施或过程控制措施,降低了任务风险,保证了交会对接任务的成功。该故障识别方法具有一定工程应用价值。
繫統級單點故障嚴重影響航天器任務的成敗。為全麵識彆繫統級單點故障模式,文章提齣瞭基于時域空域分析、故障樹分析(FTA)和故障模式影響分析(FMEA)相結閤的關鍵事件繫統級單點故障識彆方法,併在交會對接任務中得到瞭應用。通過對識彆的單點故障模式相關設備採取在軌補償措施或過程控製措施,降低瞭任務風險,保證瞭交會對接任務的成功。該故障識彆方法具有一定工程應用價值。
계통급단점고장엄중영향항천기임무적성패。위전면식별계통급단점고장모식,문장제출료기우시역공역분석、고장수분석(FTA)화고장모식영향분석(FMEA)상결합적관건사건계통급단점고장식별방법,병재교회대접임무중득도료응용。통과대식별적단점고장모식상관설비채취재궤보상조시혹과정공제조시,강저료임무풍험,보증료교회대접임무적성공。해고장식별방법구유일정공정응용개치。
In order to identify the system level single point failure(SPF) which affects the mission of the spacecraft, an SPF identification method based on the critical incident is proposed and used in the rendezvous and docking (RVD) mission. In this method, the time domain and the space domain analyses of incident events, the fault tree analysis (FTA) and the failure mode and effect analysis (FMEA) are integrated to identify the SPF. And then, the failure preconception in orbit or the quality control methods are applied to point to the equipment which has the SPF. The application results show that the SPF identification method is effective in the RVD mission and similar engineering projects.