环向加肋圆柱壳结构的自由振动特性

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06独创性声明本人声明，所呈交的论文是我个人在导师指导下完成的研究工作及取得的研究成果。据我所知，文中除了特别加Ｗ标注和致谢的地方外，不包含其他人已经发表或撰写过的研究成果，也不包含为获得河南科技大学或其它教育机构的其他学位或证书而使用过的材料一。与我同工作的同志对本研究所做的任何贡献均已在论文中作了明确

2、的说明并表示了谢意。研究生签名：日期：¬∞-.$'()*+,®c¯°-±u3²³´8µ¶·±Ä¸¹ºü»¹Z¼½J¾¿ÀÁP()*+,-±Ä$ÂÃÄ•ÅZÆÇ8fÄÈÉʺË1±KÄüÆÇÌÍ-ÎÏ$ÂÐiÑÚÓÔKÄ¿¿8ıÖ×á+,-1±Øô3²≤ÙÚÛÚÌÍ-∞ÜP$'()*-./01ÝÞ>HIc1±ˇ±Łłâ`šä-žæP4=AçèéæçýéS8
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4、î¹$'()*ÓÔ01-ÝÞ2ü^¾8NÉU`ÖăĄĬĭ≠Æ-ÓÔÝÞ8
óUî¹ĥĦü$'ĹĎü㥹Ćü*ÚěäĹĎ¿áî¹$'()*ÓÔÝÞL01Įò-ďˇP#/01$'()*į./01įRayleigh-RitzşįĂõÝÞįì²íÏÅÇįî¹įŹ1şįÓÔÝÞ%&231±ÄđĒHI45671İσ.τruđφ‗‼IABSTRACTABSTRACTRing-stiffenedcylindricalshellsarewidelyusedinmanyengineeringapplicationsforgoodmechanicalbehavior,suchasaircrafteng

5、ines,spacevehiclesandoceanengineering.Duetotheextremedynamicenvironment,suchasstrongaerodynamicaction,trenchanttemperatureenvironment,fluid-structureinteraction,fewanalyticalmethodsofdynamiccharacteristicsanalysisareavailableforthehigh-securityrequirements.Thestudyofvibrationfrequencymustbeane

6、ssentialpartofdynamicresponseproblem.Inchapter2to4,thevibrationcharacteristicsofemptyring-stiffenedcylindricalshell,stiffenedFGcylindricalshellandfluid-filledring-stiffenedcylindricalshellarepresented.BasedonSander’sshelltheoryandRayleigh-Ritzmethod,theshelleigenvaluegoverningequationisderived

7、.Thevibrationcharacteristicsareobtainedwithsimplysupportedendsandclamped-freeboundaryconditionsastheexamples.Resultsarepresentedontheinfluenceofstiffener,stiffenerpositionandtheinfluenceofgeometricaldimension.Assumethatmaterialpropertie