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1、超高压瞬态炮闩机构抽壳系统的动力学分析DynamicsAnalysisofExtractorMechanisminBreechblockunderUltrahighPressure摘要抽壳机构作为舰炮的一个重要组成部分，抽壳性能直接影响到了舰炮的工作情况。本文利用弹塑性力学的相关知识对抽壳过程进行分析，并计算岀抽壳力的大小,找出了影响抽壳力的几个因素。在ADAMS中分别建立了抽壳机构的刚体和刚柔耦合虚拟样机，并进行仿真，通过对比分析，发现了刚柔耦合模型的优点。在不同的复进速度和抽壳阻力下对模型进行仿真，分析了复进速度和抽壳阻力对抽壳性能的
2、影响。结果表明，在相同的抽壳阻力下，降低复进速度会使抽壳受阻，而增加复进速度会使抽壳过程更加快速、顺畅，但是这种情况下会增大构件间的碰撞力，从而增大构件的磨损，影响其寿命；当复进速度相同时，抽壳阻力增大同样会使抽壳受阻，而如果抽壳阻力降低，则会使所需的抽売力降低，抽壳更加容易。与增大复进速度不同的是，这种情况不会使构件间的碰撞力增大，不会增加构件的磨损。通过与相关实验数据对比，证实了木文研究方法和研究结果的合理性。最后，木文还提出了改善抽壳性能的儿种方法。关键词：抽壳机构、抽壳力、ADAMS、虚拟样机、动力学分析AbstractExtra
3、ctormechanismisanimportantpartofnavalguns,andextractorperformancedirectlyaffectstheworkingconditionofnavalguns.Inthispaper,theelastic-plasticmechanicstheorywasusedtoanalyzetheprocessofextractingcartridgeaswellastocalculatetheforceofthisprocess.Inaddition,somefactorswhicha
4、ffecttheforceofextractingcartridgewerefoundout.Arigidandarigid-flexiblecouplingvirtualprototypewererespectivelybuildinADAMS,thensimulation,throughcomparisonandanalysis,someadvantagesofrigid-flexiblecouplingvirtualprototypewerediscovered.Simulatingthevirtualprototypeunderd
5、ifferentrecoilspeedandresistanceofextractingcartridgeagain,theeffectsofrecoilspeedandresistanceofextractingcartridgetoextractorperformancewereanalyzed.Theresultsshowthatundersameresistanceofextractingcartridge,extractingcartridgewasblockedwhenrecoilspeeddecreased;Wherease
6、xtractingcartridgewasmorequickandsmoothasrecoilspeedincreased,inwhichcasetheimpactforcebetweenconstructionmemberswasincreasedcorrespondingly,soastoincreaseconstructionmemberswearandreduceitslife.Whenrecoilspeediscommon,extractorwasfrustratedasresistanceofextractingcartrid
7、geincreased,andwhileresistanceofextractingcartridgedecreased,theforceofextractingcartridgeneededdecreasedtoo,whichmadeiteasytoextractingcartridge.What^sdifferentwithincreasingrecoilspeed,impactforcebetweenconstructionmembersdidnotincreaseinthiscase.Comparedwiththerelatede
8、xperimentaldata,theresearchmethodsandresearchresultsinthispaperwereprovedtobereasonable.Atthelas
