兩同型部件組成的冷貯備系統(tǒng)可靠性和參數(shù)極大似然估計.pdf

1、分類號；0213單位代碼：10005學號：$200206019密級：北京工業(yè)大學碩士學位論文題目旦旦型墅鮭塑盛笪整壁魚菱綾里童絲塑叁塑拯盔叢筮魚過英文并列B墾LI△旦!LIT芏QF△里盟立：塹盟I!gQL望題目S絲醴衛(wèi)旦YSYS里墾叢△盟旦!旦量叢曼旦研究生姓名：于匯專導師姓名業(yè)：概率論與數(shù)理統(tǒng)計研究方向：應用統(tǒng)計楊振海職稱：教授論文報告提交日期!!!!生!旦學位授予日期授于單位名稱和地址j!至三些盔蘭jI塞魚塑墮匡王墨墾!塑呈——北京

2、工業(yè)大學理學碩士學位論文AbstractInthisarticle，westudythereliabilityofarepairablecoldstandbysystemcomposedoftwosalneunits，aswitchandarepairmanbyageometricprocessapproachWhat’Smore，wediscussthemaximumlikelihoodestimate(MLE)ofthegeomet

3、ricprocess’parameterInthiscase，therepairablecoldstandbysystemisnotasgoodasnewafterrepairmentThatistosaythesystemunits’successivetimesafterrepairmentbecomeshorterandshorter，thefailureunit’srepairmenttimesbecomelongerandlo

4、ngerSupposetheobservationvaluesofthesuccessivetimesafterrepairmentfbrmadecreasinggeometricprocesswithratioa，thedistributionofXlisF(z)Undergivenmodelassumptions，wegettheanalyticalexpressionofreliabilityWeprovetheexistence

5、ofthegeometricprocessratio’smaximumlikelihoodestimate翰Atthesametime，weknowanisastrongconsistentestimateMoreover，let置comesfromanexponentialdistribution，weca4一lfindtheparameters’maximllmlikelih00destimatesarestrongconsiste