patient litter system response in a full-scale ch-46 crash test 2017 charles a. weisenbach资料.pdf

该【patient litter system response in a full-scale ch-46 crash test 2017 charles a. weisenbach资料 】是由【彩屏】上传分享，文档一共【8】页，该文档可以免费在线阅读，需要了解更多关于【patient litter system response in a full-scale ch-46 crash test 2017 charles a. weisenbach资料 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。MILITARYMEDICINE,182,3/4:287,2017PatientLitterSystemResponseinaFull-ScaleCH-,MS*?;TylerRooks,MS*;TroyBowman,BS*?;VinceFralish,BS*;,MS*,ponentsmustfunctionasasystemandareDownloadedfromhttps://academic./milmed/article-abstract/182/suppl_1/287/4209428bygueston06November2018subjectedtothedynamicsofturbulent??rstoftwofull-scaleCH-46crashtestswasconductedatNASA’-tieredstrapandpolelittersystemwasmountedintotheupiedbythreeanthropomorphictestdevices(ATDs).Duringthecrashevent,,,force,,ponentsdesignedandtestedtostaticrequirementsonly,,riteria,,upantprotectionforlitter-.-medicalevacuationandthebene?,littersandthelittercentury,signi?cantimprovementshavebeenmadeinmili-supportstructurearestaticallytestedtostandardforcelevelsupantprotectionandoutlinedinMIL-A-8865B:’sSecondLaw(force=mass×acceleration)levelandsubsystemlevelimprovementsandteststandards,upantmass()byanelerationloadfactorof8Gforward,,,-L-?rstcriterionstatesthatforalittersupportedatfourpoints()*UnitedStatesArmyAeromedicalResearchLaboratory,6901Farrel3Road,FortRucker,??LaulimaGovernmentSolutionsLLC,12565ResearchParkwaySuitesecondcriterionrequiresthelittertoberestingonitsstirrups300,Orlando,,,WeisenbachCA,BowmanT,,RooksT:Restrainedpatientresponseinafull-scaleCH-46crashtest;atMilitaryHealthScienceResearchSymposium,FortLauderdale,FL,–20,2015;asMcEntireBJ,WeisenbachCA,BowmanT,Fralishload,thelittershallnotexhibitapermanentdeformationin3V,RooksT:PatientlitterResponseinafull-scaleCH-46crashtest;,LakeBuenaVista,littersystemissubjectedtothedynamicsofturbulent?ight,–FL,May1014,2015;tM,LittellJ,JacksonK,BarkL,hardlandings,,McEntire,BJ:EvaluationoftheFirstTransportRotorcraftAirframeCrashTestbed(TRACT1)Full-,LangleyResearchCenter,Hampton,elerations,(TechnicalReport):NASA/TM-2014-,pulseduration,andmaterialTheopinions,interpretations,conclusions,-rashtestsinves-and/??,aldoi:-D-16-00236investigatedthecrashworthinessofathree-tieredstrapandMILITARYMEDICINE,,March/AprilSupplement2017287PatientLitterSystemResponseinaFull-ScaleCH--(ATDs),,whiletheremainingfourcableswereofthistestrevealedthatthelittersystem“pletely,”usedtocontroltheaircraft’,thecableswereseveredfromtheaircraftjustbeforeimpactusingpletelyrestrained,/slongitudi-Downloadedfromhttps://academic./milmed/article-abstract/182/suppl_1/287/,theintendedpitchoftheairframewas2°testingofthelittersystembeconductedatenergylevelsnoseupwithyawandrollanglesof0°.Testimpactcondi-consistentwithconditionsexpectedinmoderatelyseverebuttionswererepresentativeofbothmilitaryandcivilianrotor--oncrashtestofacraftcrashesandconsideredtobe“severebutsurvivable.”6secondH-21,eptalittersystemdesignedforAthree-tieredstrapandpolelittersystemwasinstalledintheUH-1Dhelicopter,-46fuselage(betweenFuselageStationsanalysisofbothH-21crashtestsandanassessmentoflitter350-410),nexttothetailrampdoor().Thelittersystemspeci?cationsconcludedthatlittersystemsweresupportstructureforthelittersystem()(outboardstanchions)mountedtotheair-staticstrengthperformancerequirementsforthelegacylitterframeandtwowebbingstanchionstraps(inboardstanchions)systemsusedintheH-21crashtestshavenotbeenupdatedconnectedtotheairframeceilingand?-A-,4,5Althoughlegacyandpresentlittersystemwascon?guredwithtwoinboardandtwoout-daylittersystemsaresimilarindesignspeci?cations,--46aircraftanditsinstallationusedanchorpointsIn2013,theNationalAeronauticsandSpaceAdministra--tion(NASA)conductedafull-scalecrashtestofaretiredmentwasdeterminedtobeserviceablebeforeinstalla-CH-46helicopteraspartoftheirTransportRotorcraftAir-(TRACT),inboardandoutboardstanchionbracketsinordertomeasureknownasTRACT1,wasthe?rstoftwoCH-46crashtestsvertical(Z),lateral(Y),andlongitudinal(X)().Additionally,elerometersAeromedicalResearchLaboratory(USAARL),NavalAirweremountedforwardofthelittersystemontheairframemand,andtheFederalAviationAdministration,?oor,elerometersmeasuringverticalandlon-,elerationsweremountedaftofthelittersystemdesignedanexperimenttoassesscrashworthinessoflittersys-onthe?-helowerandmiddlepositionsofthelittersystemwereoccupantsafetyduringaseverebutpotentiallysurvivable?ttedwithstandardrigidpolefoldinglitters(--380-7309,NationalIndustriesfortheBlind,Alexandria,Virginia)alsoknownasdecontaminationlitters,whiletheMETHODSupperpositionwas?ttedwithathree-hingedfoldableTalonIIAretiredCH-46ESeaKnightfuselagewasprovidedtoNASAbytheNavyCH-46ProgramOf?ce(PMA-226)-coptercapableofcarrying?,thestubwings,landinggear,engine,rotors,transmission,andverticaltailwereremoved,resultinginabarefuselageweightof1,-lagewas?ttedwiththenecessaryequipmentandhardwareforeightonboardexperiments,?tted,thetotalweightofthefuselagewas4,-?atsoil(amixtureofsandandclay),,-,,March/AprilSupplement2017PatientLitterSystemResponseinaFull-ScaleCH-46CrashTest(representingapotentialnonstandardoperationalloadingconditionanecdotallyreportedby?ightmedics).Patientsaretypicallysecuredwithtwostrapsthatencirclethelitterandpatient,onearoundthepatient’(s),?://academic./milmed/article-abstract/182/suppl_1/287/4209428bygueston06November2018patientrestraintstraps,(Diversi?edTechnicalSystems,Inc.,SealBeach,California)dataacquisitionsystemsandaMIROhigh-speedcamera(VisionResearch,Wayne,NewJersey)?,--speedvideoandsensordataweresynchro-nizedusinginter-(MathWorks,Natick,Massachusetts)?lteredusingafourthordanceFIGURE2.?ATDcongurationandtypicalthree-tieredstrapandpolewithSAEJ211channelfrequencyclass(CFC)menda-littersystemofCH-,;(A)GARDATDsecuredtoTalonIILitter,(B)HybridIIIpedes-DCoffsetswereremovedfromalldatabeforedataanaly-,(C)=;(D)Inboardlitterstanchionbracket;(E)?oor-(NSN#6530-01-504-9051,,SouthCarolina).().(ics,Plymouth,Michigan).–10cellswerelocatedwithintheATD’sneck,lumbarspine,,chest,/slon-thatthepositivexaxiswasintheATD’sposteriortoante-,positivezaxiswasintheATD’ssuperiortoimpact,°noseup,°roll,andinferiordirection,andpos