聚能裝藥對巖土混雜介質(zhì)的侵徹研究.pdf

1、大連理工大學碩士學位論文聚能裝藥對巖土混雜介質(zhì)的侵徹研究姓名：劉大輝申請學位級別：碩士專業(yè)：工程力學指導教師：李曉杰20061225劉大輝：聚能裝藥對巖土混雜介質(zhì)的侵徹研究StudyonthePenetrationofFrozensoilandstonebyShapedchargeAbstractExplosivewithlinedcavities，alsonamedshapedchargeorhollowchargeIt’sanequ

2、ipmentthatcallgathertheenergyofexplosiveinonedirectionthroughthemetallinerinthecavityoftheexplosivenemetallinercallgatherthechemicalenergycomefromtheexplosionofexplosiveandtranslatethisenergytokineticenergyIt’shardtodril

3、laholeinthefrozensoilwithordinarydrillequipmentevenwiththespecialdrillequipmentitwillcostalongtimebecauseofthecomplicatedcapabilityoffrozensoilHowtodevelopafastportablefrozensoilpenetratoristhemainaimofthispapernlestateo

4、fartofthebasictheoriesanditsresearchofshapedcharges戤homeandabroadwasbrieflyintroducedinthispaperThewaytonumericallysimulateshapedchargesandthepenetrationoftargetbyshapedchargewithANSYS／LSDYNAwasdescribeddetailedlyThemeth

5、odtodesignafrozensoilpenetratorwithANSYS，LSDYNAwasalsodiscussedinthispaperintheendafrozensoilpenetratorwassuccessfullydesignedandoptimizedinthewaydiscusse&Firstofall，severalkindsofshapedchargesthatmightsuitthepenetration

6、offrozensoilwaschosenaccordingtothebasictheoriesandexperientialformulathennumericallysimulatetheseshapedcharges，analyzethesimulatedresuitsandpickedoutthreekindsofshapedchargewhichproduceakindofshortandroughjetsthatissuit

7、topenetratefrozensoilManufacturedthethreegroupsofshar，edchargesanddothefrozensoilandstonepenetrationexperimentwiththemThenadjustthetargets’modelparametersaccordingtothecompareofsimulatedresultsandexperimentalresultstomak

8、ethesimulatedresultsagreetheexperimentalresultsmoreFinallyweoptimizetheshapedchargethroughthesimulationofshapedchargewithlinersofdifferentthicknessandthedimensionofexplosivewithANSYS／LSDYNATheresultsisperfectandit’spossi

9、bletogetadeeperhole、ⅣiththelightershapedchargeAneffectivemethodtonumericallysimulatetheshapedchargeandthepenetrationofitwasstudied111eoptimumdesignofshapedcharge、)l，imthismethodwascarriedoutandtheexperimentalresultsprove