分析水下气动发射装置内弹道仿真和参数影响

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1、机床与液压HydmmechatmnicsEngineeringVo1．42No．12Jun．2014DOI：10．3969／j．issn．1001-3881．2014．12．001Interi0rballisticsimulationandparameterinfluenceanalysisofanunderwaterpneumaticlauncherQing—yongNIU．Tian—yunLI'sc。。lofNa口lArchitecmre。nd0ce凡Engineering，Huazh。ngUniversityofScieeⅡndTechnol。gY，

2、n430074，China；。

3、snndMarineHydrodynamicsKeyLab。rat。，．yofHubeiProvince，Wuhan430074，ChinaAbstract：Anunderwaterpneumaticlaunchewasstudiedtoanalyzeitsinteriorballisticcharacter-istics．Usingmathematicalmodelingmethod，theinteriorballisticmodelwasestablished-Thein。fluencesofthreeparameter

4、swerediscussedincludingthecriticalmovingresistantforce，themaximumopenareaofthelaunchvalveandtheinitialinflationair。bottlepressure．Theresultsshowthatthemaximumchamberpressureismainlydeterminedbythecriticalresistantforce，andtheexitvelocityoftheweaponoutofthelaunchtubeismainlydetermi

5、nedbytheinitialinfla’lionair·botlepressureandthemaximumopenareaofthelaunchvalve．Keywords：Launcher，Mathematicalmodeling，Interiorballistic，Parameterinfluenceanalysis[3．5]，wuZhao-hui，etall6]．Amongthesestud·1．Introductionies，eachcomponentofthelaunchsystemwassepa—ratelymathematicallymo

6、deledandthenthe1aunchForacertaintypeofunderwaterpneumaticsystemwasanalyzedasawhole．launcher．compressedairisusedasenergysourcetoHowever．becauseofthediferenceinsealingthrusttheweaponoutofthelaunchtubeatade-mechanismandtheweaponexternalgeometry，thesignedvelocity．Thestudyoftheinterior

7、ballistichasinteriorballisticperformanceofthistypeofpneumaticgreatsignificanceintheoptimizationdesignofthelauncherdistinguishesfromthatoftorpedolaunchers．launcherandthepre．estimationofthelaunchexperi—Inthisresearchthermalanddynamictheoriesarements．Forconfidentialityreasons，literat

8、uresrelatedusedtoestablishtheinteriorballisticmode1ofthistothistypeof】aunchercouldrarelybecollected．Butlauncher．Forjnteriorballisticparameterswhichowingtothesimilaritytoothertypesoflaunchersfeetthemaximumchamberpressureandtheexitve．suchastorpedolaunchersinsomeaspects，thistype1ocit

9、yofweapon．theirinfluence1awisdisc