艦船塔式桅振動(dòng)特性研究.pdf

1、華中科技大學(xué)碩士學(xué)位論文艦船塔式桅振動(dòng)特性研究姓名：何慶林申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：船舶與海洋結(jié)構(gòu)物設(shè)計(jì)制造指導(dǎo)教師：趙耀段宏2002.5.3華中科技大學(xué)碩士學(xué)位論文ABSTRACTIllisthesis1Sapracticeengineeringprojectderivedfromatypeofimportantnavalship’Skey。techniqueitemresearchoftheback—maststaticanddyna

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6、heassembletransfermatrixesisformedforthecombinationdynamicsy’stem111enaturalfrequencyoftowermastisderivedbysolutionoffrequencyequationwithsteppingtechniqueanddichotomyComparedwiththeFEM，也emethoddescribedinthepaperiSeffic

7、ientinevaluatingthenaturalfrequencyoftowermastonthephaseofship’sschemedesign111eIl’comparetheresultsoftheauthorwiththatofanothertwocollaboratorsReliabilityanalysisiSinvestigatedby也emethodofstaffstic，andaconclusioniSmade也

8、atthedesignedmastmeets也edemandforapplicationInord盯tofindoutthebasicprinciplesofthewarship’stowermastfactorsrelatedtothenaturalfrequencyⅥ吧realsoproposedinthispaperThatlayafoundationforthefollowingd囂ignphasetectifythestruc

9、tureandschemeFinallyaftertheworksdestinedwerefulfille‘LaccordingtoarecurrequestofequlpmeminshipmastaddtheresearchabouttheharlllOnicresponseofmastvibrationdiscusscdhowtochooseharmonicexcitationfoDeeanddampingcoe伍cient111e

10、workslayafoundationforavessel’StowermastinengineeringdesignalSOprovideareferenceintheshipassemblylayoutdesigmAswellas，theconclusioninthispaperarevaluableinguidingtheapplicationoftowetmastinhomogeneouswarshipsKeywords：nav