裝載機(jī)可靠性快速分析和預(yù)計(jì)方法的研究.pdf

1、山東大學(xué)碩士學(xué)位論文裝載機(jī)可靠性快速分析和預(yù)計(jì)方法的研究姓名：馬化吉申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：工程碩士(機(jī)械工程)指導(dǎo)教師：謝宗法付正洲20121108山東大學(xué)碩士學(xué)位論文AbstractWiththedevelopmentofEngineeringmachineryThecompetitionchangedfromthepricewartothecompetitionofproductqualityAtthesametime，theea

2、rlyaccumulationofproduct’Swarrantydatausingnetworkandthepopularityofcomputermakeswehaveaccumulatedalargenumberoftrueanddetaileddataallmakeit’SposssibletoimproveourproductbydataanalysisInthispaperItriedtothroughthedataana

3、lisysofhostandmainpartsofwheelloaderthemainproductofOurcompanystatisticsfailurerateanditstrendinwarrantyperiod，summarizedthetrendofdifferentpartsandcomparethetrendpredictionmethodFirstIsimpleintroducethestructureofwheell

4、oaderandourdataclassificationmethodthewaywestatisticalwheelloader’SwarrantyfailurerateandthewaywegetfaultratetrendAccordingtothestatisticaldatathecalculationresultsshowthatinthewarrantyperiod，thefailurerateofhostandmainp

5、artsofwheelloaderhaveobviousregularityAccordingtothetwopolynomialfittingonfailureratetrend，thevastmajorityofcomponentsfailureratewithdegree(value)morethan，illustratethewarrantyfailureratecompletelywithtwodegreepolynomial

6、curveSecondlyaccordingtothedevelopmentofmachinefailureratetrendinhistoryforcastfromearlyfailurerate，getaresultandcomparewithactualfailurerates，analysisthedifferencefromthetwotrendAtthesametime。whenthepartsqualitytrendcha

7、nged，accordingtothecontinuitvoffaultrateincrease，statisticalearlyfailurerateanditsdevelopmenttrendfbrcastthefinalresultofthewholewarrantyperiod，comparewithactualdata，tocarryonthefeasibilityfromearlyfailureforlatefailurer

8、ateFinallⅥanalysisthefactwhichcouldhaveimpactonthefaultrate，suchasseasonal，users，conditionsandregionals，accordingtotheactualhistoricalimpact，pointedoutwhichmustbeseriousconsideredwhenmakingafailurerateforcastKeywords：whe