2011 Vol. 31, No. 6
Display Method:
2011, 31(6): 561-566.
doi: 10.11883/1001-1455(2011)06-0561-06
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Abstract:
Abstract:Arotor-bearingsystemunderbase-transferredshockexcitationwasestablishedbyapplying theGalerkinfiniteelementmodeltosimulatetheshipboardrotatingmachinerysubjectedtounderwaternon- contactexplosion.Basedonthe Newton'stheorem,moment-of-momentum the...
Abstract:Arotor-bearingsystemunderbase-transferredshockexcitationwasestablishedbyapplying theGalerkinfiniteelementmodeltosimulatetheshipboardrotatingmachinerysubjectedtounderwaternon- contactexplosion.Basedonthe Newton'stheorem,moment-of-momentum the...
2011, 31(6): 567-572.
doi: 10.11883/1001-1455(2011)06-0567-06
Abstract:
Basedonthecontinuum medium mechanicstheoryoffiberreinforcedcompositematerials andtheviscoelastictheory,arate-dependentconstitutivemodelwasproposedforporcineham muscle. Themodelparametersweregainedbyfittingtheconstitutiveequationstothestress-straincur...
Basedonthecontinuum medium mechanicstheoryoffiberreinforcedcompositematerials andtheviscoelastictheory,arate-dependentconstitutivemodelwasproposedforporcineham muscle. Themodelparametersweregainedbyfittingtheconstitutiveequationstothestress-straincur...
2011, 31(6): 573-578.
doi: 10.11883/1001-1455(2011)06-0573-06
Abstract:
Amulti-pointignitionsystemwithanelectricigniterwasdesignedandexperimentalinvestigationswerecarriedoutbyusingthisanalogueignitiondevic tosolvethechargeproblemsinthe powderchamberswiththeover3mlength.Thecorrespondingmathematicalandphysicalmodelswere es...
Amulti-pointignitionsystemwithanelectricigniterwasdesignedandexperimentalinvestigationswerecarriedoutbyusingthisanalogueignitiondevic tosolvethechargeproblemsinthe powderchamberswiththeover3mlength.Thecorrespondingmathematicalandphysicalmodelswere es...
2011, 31(6): 579-584.
doi: 10.11883/1001-1455(2011)06-0579-06
Abstract:
Water-entryexperimentswereconductedinthevelocityrange35~160m/sfortheprojectilesofthethreedifferentgeometriesincludingflatnose, truncated-ogivalnoseandogivalnose.A digitalhigh-speedcamerawasusedtorecordthedetailedprocessesofwaterentryandcavityexpansio...
Water-entryexperimentswereconductedinthevelocityrange35~160m/sfortheprojectilesofthethreedifferentgeometriesincludingflatnose, truncated-ogivalnoseandogivalnose.A digitalhigh-speedcamerawasusedtorecordthedetailedprocessesofwaterentryandcavityexpansio...
2011, 31(6): 585-591.
doi: 10.11883/1001-1455(2011)06-0585-07
Abstract:
Afixed-cavityangulardispersionFabry-Perotvelocityinterferometerwasdevelopedbyapplyingasolidetalontorealizethatthisinterferometer'sstructurewascompact, theinterferencefringesobtainedbyitwereadjustment- freeanditsfringeconstantcouldbeeasilyandaccuratel...
Afixed-cavityangulardispersionFabry-Perotvelocityinterferometerwasdevelopedbyapplyingasolidetalontorealizethatthisinterferometer'sstructurewascompact, theinterferencefringesobtainedbyitwereadjustment- freeanditsfringeconstantcouldbeeasilyandaccuratel...
2011, 31(6): 592-599.
doi: 10.11883/1001-1455(2011)06-0592-08
Abstract:
Opticalmeasurementcomponentsweredesignedandmachinedtobeequippedintheconventionaldrop- weightsystem.Basedontheimproveddrop-weightsystem,theresponseprocessesofdifferent- massHMXparticlesimpactedbythedifferentfalling-heightweightdropswererecordedbya hig...
Opticalmeasurementcomponentsweredesignedandmachinedtobeequippedintheconventionaldrop- weightsystem.Basedontheimproveddrop-weightsystem,theresponseprocessesofdifferent- massHMXparticlesimpactedbythedifferentfalling-heightweightdropswererecordedbya hig...
2011, 31(6): 600-605.
doi: 10.11883/1001-1455(2011)06-0600-06
Abstract:
Theone-dimensionalthermalshockwaveinacarbon-phenoliccompositewastakenforan exampletodiscusstheinfluencesofconstitutivemodelsonnumericallysimulatedresultsofX-ray thermalshock wavesincomposite materials.Thecorrespondingnumericalsimulationswereperformed...
Theone-dimensionalthermalshockwaveinacarbon-phenoliccompositewastakenforan exampletodiscusstheinfluencesofconstitutivemodelsonnumericallysimulatedresultsofX-ray thermalshock wavesincomposite materials.Thecorrespondingnumericalsimulationswereperformed...
2011, 31(6): 606-611.
doi: 10.11883/1001-1455(2011)06-0606-06
Abstract:
AnAlfoamenergyabsorberwasintroducedtoavibrationisolatingsystemtoreplacethe traditionalrigidandelasticbuffers.Andthecorrespondingtheoreticalanalysiswascarriedoutby comprehensivelyconsideringthetwoimportantindexes:themaximumaccelerationandthemaximum re...
AnAlfoamenergyabsorberwasintroducedtoavibrationisolatingsystemtoreplacethe traditionalrigidandelasticbuffers.Andthecorrespondingtheoreticalanalysiswascarriedoutby comprehensivelyconsideringthetwoimportantindexes:themaximumaccelerationandthemaximum re...
2011, 31(6): 612-618.
doi: 10.11883/1001-1455(2011)06-0612-07
Abstract:
Aimedatthefollowingcharacteristicsoftheexplosionexcitationseismicwaveincarbonate rockswhichincluding weakenergy,highfrequencyandlowsignal-to-noiseratio,anon-coupling chargecoefficientoftheseismicsourcewasdefinedtoimprovethehole-chargestructure.Calcul...
Aimedatthefollowingcharacteristicsoftheexplosionexcitationseismicwaveincarbonate rockswhichincluding weakenergy,highfrequencyandlowsignal-to-noiseratio,anon-coupling chargecoefficientoftheseismicsourcewasdefinedtoimprovethehole-chargestructure.Calcul...
2011, 31(6): 619-623.
doi: 10.11883/1001-1455(2011)06-0619-05
Abstract:
Inordertoinvestigatetheimpactcompressiveresponseofconfineddrysand,thedynamic compressionexperimentsofdrysandatdifferenthighstrainratesanddifferentpreloadswereconductedonthemodifiedsplitHopkinsonpressureb r(SHPB)withathinrubbercircularplateasapulse sh...
Inordertoinvestigatetheimpactcompressiveresponseofconfineddrysand,thedynamic compressionexperimentsofdrysandatdifferenthighstrainratesanddifferentpreloadswereconductedonthemodifiedsplitHopkinsonpressureb r(SHPB)withathinrubbercircularplateasapulse sh...
2011, 31(6): 624-629.
doi: 10.11883/1001-1455(2011)06-0624-06
Abstract:
Thequasi-staticBraziliantestwasperformedontheMTSmachinetoinvestigatethetensile fracturemodesofthePBXspecimen.AnopticalpreparationtechniqueforthePBXspecimenwasdevelopedtoobtainmorevividmicrostructurefeaturesunderopticalmicroscopes. Andthedeformation a...
Thequasi-staticBraziliantestwasperformedontheMTSmachinetoinvestigatethetensile fracturemodesofthePBXspecimen.AnopticalpreparationtechniqueforthePBXspecimenwasdevelopedtoobtainmorevividmicrostructurefeaturesunderopticalmicroscopes. Andthedeformation a...
2011, 31(6): 630-634.
doi: 10.11883/1001-1455(2011)06-0630-05
Abstract:
BasedonthenonlineardynamicssoftwareLS-DYNA,thecompleteprocessofjetparallel penetratingair/steeltargetinterfacewasnumericallysimulated.Byanalyzingtheprocessandresultof numericalsimulation,thevelocityoftheshapedchargejettipandthetransversevelocityafter...
BasedonthenonlineardynamicssoftwareLS-DYNA,thecompleteprocessofjetparallel penetratingair/steeltargetinterfacewasnumericallysimulated.Byanalyzingtheprocessandresultof numericalsimulation,thevelocityoftheshapedchargejettipandthetransversevelocityafter...
2011, 31(6): 635-640.
doi: 10.11883/1001-1455(2011)06-0635-06
Abstract:
Basedonthefiniteelementanalysissoftware,afiniteelementmodelwasestablishedforthe rapid-firingguncross-sectiontoexploretheresidualstressintheautofrettagedbarrel,whichwasinfluencedbythehigh- temperature,high-pressureandhigh-speedexplosivegaswhenshooting...
Basedonthefiniteelementanalysissoftware,afiniteelementmodelwasestablishedforthe rapid-firingguncross-sectiontoexploretheresidualstressintheautofrettagedbarrel,whichwasinfluencedbythehigh- temperature,high-pressureandhigh-speedexplosivegaswhenshooting...
2011, 31(6): 641-646.
doi: 10.11883/1001-1455(2011)06-0641-06
Abstract:
Thesimilitudewasanalyzedbetweenthecharacteristicsofexplosionbubblesgeneratedby laser-inducedbreakdownanddetonatorexplosioninwater.Bycombiningahighpowerlaser,anopticalfocussystem, ahigh-speedcameraandahydrophone,ameasurementsystemwasdevelopedtoexperim...
Thesimilitudewasanalyzedbetweenthecharacteristicsofexplosionbubblesgeneratedby laser-inducedbreakdownanddetonatorexplosioninwater.Bycombiningahighpowerlaser,anopticalfocussystem, ahigh-speedcameraandahydrophone,ameasurementsystemwasdevelopedtoexperim...
2011, 31(6): 647-652.
doi: 10.11883/1001-1455(2011)06-0647-06
Abstract:
WiththehelpofANSYS/LS-DYNAfiniteelementsoftware,thedirectionalblastingcollapseprocessofacertainhighframe- shearwallstructurewasnumericallysimulatedbyusingtheintegralmodelandcommonnodeseparatemodel. Andthenumericallysimulatedresultswerecompared withth...
WiththehelpofANSYS/LS-DYNAfiniteelementsoftware,thedirectionalblastingcollapseprocessofacertainhighframe- shearwallstructurewasnumericallysimulatedbyusingtheintegralmodelandcommonnodeseparatemodel. Andthenumericallysimulatedresultswerecompared withth...
2011, 31(6): 653-657.
doi: 10.11883/1001-1455(2011)06-0653-05
Abstract:
BasedontheJohnson-CookmaterialmodelandtheGrneisenequationofstate,athermoplastichydrodynamicmodelwasestablishedbyadoptingthesmoothparticlehydrodynamics( SPH) methodintheANSYS/LS-DYNA11.0tonumericallysimulatetheformationandevolutionprocesses oftheinter...
BasedontheJohnson-CookmaterialmodelandtheGrneisenequationofstate,athermoplastichydrodynamicmodelwasestablishedbyadoptingthesmoothparticlehydrodynamics( SPH) methodintheANSYS/LS-DYNA11.0tonumericallysimulatetheformationandevolutionprocesses oftheinter...
2011, 31(6): 658-663.
doi: 10.11883/1001-1455(2011)06-0658-06
Abstract:
Byintegratingtheelement-freeGalerkin(EFG)methodwiththeLS-DYNAsoftware,ananalysismodelforperforationandpenetrationwasdevelopedtonumericallysimulatethepenetrationof aspherical-noseprojectileintoasemi-infinitesteeltargetinthreedimensions.Thesimulatedres...
Byintegratingtheelement-freeGalerkin(EFG)methodwiththeLS-DYNAsoftware,ananalysismodelforperforationandpenetrationwasdevelopedtonumericallysimulatethepenetrationof aspherical-noseprojectileintoasemi-infinitesteeltargetinthreedimensions.Thesimulatedres...
2011, 31(6): 664-668.
doi: 10.11883/1001-1455(2011)06-0664-05
Abstract:
Accordingtotherelationbetweenthemetalconductorsspecificactionandresistivityand theanalyticalformulaforthevariationoftheexplodingwirewithtimebroughtforwardbyHobson, twocomputationalmodelsweredevelopedtoexploretheelectricalcharacteristicsofanelectricex...
Accordingtotherelationbetweenthemetalconductorsspecificactionandresistivityand theanalyticalformulaforthevariationoftheexplodingwirewithtimebroughtforwardbyHobson, twocomputationalmodelsweredevelopedtoexploretheelectricalcharacteristicsofanelectricex...
2011, 31(6): 669-672.
doi: 10.11883/1001-1455(2011)06-0669-04
Abstract:
Accordingtotheblastingexperiencesandactualexplosion-in-rockinducedrockfragmentation, theshockwaveenergyproducedbytheliquidexplosiveexplosionwasseparatedintothesurface energyofthefracturedrockandthestrainenergyintherockbyapplyingtheenergyconservationl...
Accordingtotheblastingexperiencesandactualexplosion-in-rockinducedrockfragmentation, theshockwaveenergyproducedbytheliquidexplosiveexplosionwasseparatedintothesurface energyofthefracturedrockandthestrainenergyintherockbyapplyingtheenergyconservationl...
