层合圆锥壳及组合壳的受迫与自由振动特性分析

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中图分类号：TH113.1 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202504067

Abstract：Thisstudypresentsaomprehesiveinvestigatiointothevibrationcharacteristicsofompositelamiatedcoicalseand combinedstructuresthroughteintegratiooflaminatedthiselltheoryandspectralelemetmetodThedynamicmodeloftecobined shellstructureisonstructedbyombiingtheboundaryoniosofindividualonicalsellandtevaatiosofs-ertexagles.A novelvibratioaalysthodoloisfulated，stablisingtedamicstifssmatrixfulti-aedonicalselltcee validityofboththecomputationalframeworkanddynamicmodelingapproachhasbenrigorouslyverifiedthroughcomparativeanalysesof naturalfrequenciesandvibrationresponsesagainstfiteelementmethod（FEM）simulations，demonstratingexcellntagreeentThe systemticparaericivestigatieaesritalctsfencgvbatioalaioclugelasticoundaryostattel extremities，plyntatioangles，umberofainglars，andsm-vertexnglecofiguratiosKeyfidingsrevealtatplytio andboundarystifnesssignificantlyifluencenaturalfrequencyspectra.Semi-vertexanglevarationsdemonstratefrequencydepedent effects，whereincreasedsemi-vertexanglesinduceprogresivedownwardshiftsinresonancepeakstowardlower frequencyrangesThe developedmethodologyofersvauableanalyticaltoolsforvibrationpredictionandparametricoptimizationinlaminatedonicalelland combinedshellstructuresdesign.Thisresearchparticularlycontributestotheaccuratemodelingofcomplexboundaryconditionsand anisotropicmaterialefectsiomposieelltructures，prvidinesetialsightsfoerospac，mecanical，ndcivilig applications requiring precision vibration control.

Keywords：coplmteoalsellvatioractesis;spetalmtd;eealoudayos;aturecy

圆锥壳结构是潜艇、鱼雷、水下无人航行器等海洋工程装备的典型艉部结构。（剩余12926字）