CAJ | 학술논문

针对某周边桁架式大型星载天线进行展开可靠性研究.分析大型星载天线的展开机理,并在对星载天线展开系统故障树分析的基础上,针对传统故障树分析中存在的不确定性难以量化的问题,结合D-S(dempster-shafer)理论和区间概率理论,提出星载天线展开机构故障树区间分析方法,构造失效独立和失效相关情况下故障树区间分析的与门区间算子和或门区间算子,在此基础上对系统的展开可靠度进行分析和预测.可靠性分析的结果表明文中提出的计算模型和分析方法是合理和可行的.
침대모주변항가식대형성재천선진행전개가고성연구.분석대형성재천선적전개궤리,병재대성재천선전개계통고장수분석적기출상,침대전통고장수분석중존재적불학정성난이양화적문제,결합D-S(dempster-shafer)이론화구간개솔이론,제출성재천선전개궤구고장수구간분석방법,구조실효독립화실효상관정황하고장수구간분석적여문구간산자화혹문구간산자,재차기출상대계통적전개가고도진행분석화예측.가고성분석적결과표명문중제출적계산모형화분석방법시합리화가행적.
A study on the deployment reliability of a large satellite antenna with hoop-truss was presented. Firstly, the movement principium of the large antenna was studied. Secondly, To formulate the uncertainties of conventional fault tree analysis, the method of fault tree interval analysis based on D-S(dempster-shafer) theory and interval probability theory is proposed. On the condition that the premises in FTA(faulty tree analysis) is dependence or independence between basic events, the AND operator and the OR operator are proposed to compute interval probability of FTA, and upon which the system reliability was forecased. The reliability analysis shows that the rationality and validity of the presented method.