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         AcceleratedStorageLifeTestandAssessmentMethodforExplosiveInitiatorusedonAircraft

                                          2
                        1,2
                                                                    1,2
                                                    1,2
         ZHAO Changjian ,HONG Dongpao ,GUAN Fei ,ZHANG Hairui
         (1.CollegeofAerospaceScienceandEngineering,NationalUniversityofDefenseTechnology,Changsha410073,China;2.ChinaAcademyofLaunchVehicle
         Technology,Beijing100076,China)
         Abstract:Theexplosiveinitiatorusedforaircraftisaproductwithhighreliabilityandlonglife.Inordertoimprovethestoragelife
         assessmentprecisionofsmallsamplesizeexplosiveinitiator,throughtheanalysisoftheinfluencefactorsonstoragelife,anaccel
         eratedstoragelifemodeldescribingtherelationofstoragelifeandstoragetemperatureforexplosiveinitiatorwasestablishedanda
         methodsuitedfortestingandevaluatingtheacceleratedstoragelifeofexplosiveinitiatorusedforaircraftwasproposedviaacom
         binationofsensitivitytestandacceleratedtest.Basedonthesensitivitytestdataofexplosiveinitiatorafteraccelerationandgeneral
         izedlinearmodel,themaximum likelihoodestimationsofthesensitivitydistributionparametersweregiven.Then,thestoragelife
         assessmentofexplosiveinitiatorusedforaircraftwasperformedaccordingtoapproximatenormalcharacteristicsofparameteresti
         mations.Themethodwasappliedtooneaircraftexplosiveinitiator.Theresultsshow thattheeffectiveevaluationofexplosiveiniti
         atorrequiredtostoremorethan15yearscanbecarriedoutviatestdataobtainedbyasamplesizeofabout150andaperiodof
         about40days.
         Keywords:aircraftdesign;explosiveinitiator;acceleratedstoragelifetest;sensitivitytest;generalizedlinearmodel
         CLCnumber:TJ4;TB114.3           Documentcode:A                DOI:10.11943/j.issn.10069941.2015.11.018































         ChineseJournalofEnergeticMaterials,Vol.23,No.11,2015(1130-1134)  !"#$        www.energeticmaterials.org.cn
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