深水环境下潜艇舯部结构撞击强度数值分析-豆柴文库

您所在位置：网站首页 / 深水环境下潜艇舯部结构撞击强度数值分析.docx / 文档详情

在线预览结束，喜欢就下载吧，查找使用更方便

5 金币

下载文档

/ 2

下载提示

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

文本预览

深水环境下潜艇舯部结构撞击强度数值分析
Abstract:
Submarineconningtowerisakeystructureforsubmarinesafeoperationandcrewmembers'living.However,duetosevereunderwaterenvironment,itisvulnerabletovarioustypesofimpacts,includingcollisionwithexternalobjects.Therefore,itisnecessarytoconductnumericalanalysisonthecollisionstrengthofsubmarineconningtowertoensureitssafety.Inthispaper,weuseANSYSsoftwaretosimulatethecollisionprocessofsubmarineconningtowerindeepwaterenvironment.Theimpactforceandstressdistributionareanalyzed,andtheresultsshowthattheconningtowercanwithstandacertaindegreeofimpactandmaintainitssafety.
Introduction:
Submarineconningtowerisakeystructureofsubmarine,whichisresponsibleforthesafeoperationofthesubmarineandthelivingofcrewmembers.Duetothedeepwaterenvironmentandhigh-speedoperation,theconningtowerisvulnerabletovarioustypesofimpacts,includingcollisionwithexternalobjects,whichmayleadtoseveredamageorevencompletedestructionofthestructure.Therefore,itisnecessarytostudythecollisionstrengthofsubmarineconningtowertoensureitssafety.
Theoreticalanalysis:
Thecalculationofthecollisionforcemainlyincludestwoparts:thekineticenergyoftheobjectandtheresistanceforceoftheconningtower.ThekineticenergyoftheobjectiscalculatedbytheformulaE=1/2mv2,wheremisthemassoftheobjectandvisthevelocityoftheobject.TheresistanceforceoftheconningtoweriscalculatedbytheformulaF=1/2ρυ2CdA,whereρisthedensityofwater,υisthevelocityofthewater,Cdisthedragcoefficient,andAisthecross-sectionalareaoftheconningtower.
Numericalsimulation:
WeuseANSYSsoftwaretosimulatethecollisionprocessofsubmarineconningtowerindeepwaterenvironment.Themodelofconningtowerisestablishedbasedontheactualstructure,andtheexternalobjectissimulatedasarigidsphere.Thesimulationprocessincludesfoursteps:(1)themodelisimportedintothesoftwareandthematerialpropertiesareassigned;(2)theinitialvelocityandpositionofthespherearespecified;(3)thesimulationisperformedtoobtainthecollisionforceandstressdistribution;(4)theresultsareanalyzedandcomparedwiththetheoreticalcalculation.