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1、!43"!7#!"#$$%(!"#)Vol.43No.72009$7%JournalofZhejiangUniversity(EngineeringScience)Jul.2009DOI:10.3785/j.issn.1008973X.2009.07.010§¨f??¨ak>C??`;9430033)GH:Go<=>ü0?KNNO&}?ééêg<=N??,?tü0í2?ósl+,éêslN?aH,C$éê<=N3+¥<=Nzy,o<=>NR、??ü0NOzy,àJè?@ae?&b<=>NJè?@DP,rs`OP<
2、=>Nü0^NOw,TzNrU.DE¨?,Lazzà<=>rNü0^NOw@,êz?Nab±GH.IJK:rü0;NO;Jè?a;<=LMNOP:TB53QRSTU:AQVWP:1008973X(2009)07122203犛狋犪狋犻狊狋犻犮犪犾犲狀犲狉犵狔犪狀犪犾狔狊犻狊狅狀狊狋狉狌犮狋狌狉犲狏犻犫狉犪狋犻狅狀犪狀犱狊狅狌狀犱狉犪犱犻犪狋犻狅狀犳狉狅犿狋狅狉狆犲犱狅DINGShaochun,ZHUShijian,LOUJinjun(犐狀狊狋犻狋狌狋犲狅犳犖狅犻狊犲犪狀犱犞犻犫狉犪狋犻狅狀,犖犪狏犪犾犝狀犻狏犲狉狊犻狋狔狅犳犈狀犵犻狀犲犲狉犻狀犵,犠狌犺犪狀43003
3、3,犆犺犻狀犪)犃犫狊狋狉犪犮狋:Acousticsdesignplaysanimportantplaceinthedesignoftorpedo.Thestructurevibrationandsoundradiationhavegreatinfluencetotheeffectivenessoftorpedo.Thecharacteristicsofstructurevibrationandsoundradiationfromtorpedowerestudied,andschemestocontrolthevibrationandradiatednoiseweref
4、ound.Asimplifiedmodeloftorpedowassetupandthenumericalsimulationwascarriedout.Theradiatednoisewaspredictedusingthestatisticalenergyanalysismethod.Severalconclusionswereobtainedintheexplorationofthewaytoreducethevibrationandnoise.犓犲狔狑狅狉犱狊:structurevibration;soundradiation;statisticalenergya
5、nalysis;torpedo<=HtC;lA@Nn3yò7tPR,p?q[Nrü0{Ns0[1]TEN?T;l.¥>ó[Tà,A?<=,àLb,aH?ùY[.?Y?<=rüT、,BT?ìC?tuQiKLMNê[2?I4óí,????,?Dd@a、zDìà,D1ù8[àn3<=.<=>NüDaK-)qaìè`?B[、è`àT[23]0.éê<=6N??,?Yà.àLMü0?KNNO&}?ééêg<=N?@aNà$B,óíIJ"??0à6zy?;?àLM<=>Nü0í2?ósanà/zàNaê,0Jè?@ay?l+,éêslN
6、?aH,éê<=N3cìqóír??üzyNzzLa.è+¥<=.0H<=r6?èNEàpq,o+?Jè<=?[PóírNü06wO?aN<=rNOè`La{
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12、@,?Ha???#JàjkFig.1Partitionoftorpedoshell[45]rS{êNs0à6zy,C$72J
13、bü0^6ê.QNFG.Jè?@aE*N+è?×b:(1))*`IJ.eJè?@aDPFì?)*s±N`IJ,4à)*`IJêNs?@,Và?Yó*a7kl