挑战者号航天飞机事故

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1、CHALLENGER51LSHUTTLEDISASTER挑战者号航天飞机事故THESPACESHUTTLECHALLENGERFLIGHT51LCHALLENGERCREWONIZUKAMcAULIFFEJARVISRESNICKSMITHSCOBIEMcNAIRMISSIONOBJECTIVESTrackingDataRelaySatellite2DeploymentSPARTAN-203ShuttlePointedTool/Halley’sCometExperimentDeploymentFluidDynamicsExperimentCometHall

2、eyActiveMonitoringProgramPhasePartitioningExperimentShuttleStudentInvolvementProgramTeacherInSpaceProjectLAUNCHDELAYS22-24/1/86DelaytoMission61-C25/1/86BadWeatheratTransoceanicAbortLandingSite(TAL),Dakar,Senegal26/1/86BadWeatheratKSC27/1/86ProblemwithGroundEquipmentClosingHatch28/1

3、/86HardwareInterfaceModuleFailureSHUTTLELAUNCHGMT(hr:min:sec)Event38:00.688ConfirmedsmokeabovefieldjointonRHSRM38:00.846Eightpuffsofsmoke(from0.836thru2.500secMET)38:02.743LastpositiveevidenceofsmokeaboverightaftSRB/ETattachring38:03.385LastpositivevisualindicationofsmokeFLAMES38:5

4、8.798FirstevidenceofflameonRHSRM38:59.272ContinuouswelldefinedplumeonRHSRM38:59.763FlamefromRHSRMin+Zdirection39:00.248Firstevidenceofplumedeflection,intermittent39:00.258FirstevidenceofSRBplumeattachingtoETringframe39:00.998Firstevidenceofplumedeflection,continuousDISASTERSOLIDROC

5、KETBOOSTERRogerBoisjolyORINGEROSIONPrimarySealErosionfromFlight51-BJOINTROTATIONphenomenoncausedbytheinternalpressurecausesthesectionsoftherockettoswellseparatesthejointlimitsthesecondaryO-ring'sabilitytoperformasaredundantsealMANAGEMENTSTRUCTURESTHEROGERSCOMMISSION