弹性连接串列双管涡激振动响应特性研究

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关键词：涡激振动；弹性连接；非线性弹簧力；串列双管；振动相位差 中图分类号：U448.25；U448.27 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202506037

Abstract：Toinvestigatetevortex-inducedvibration（V）characteristisofelasticallyoectedtademdoublecyliders，ac theoreticalmodelofteuacyldersisestabsdfud-structureiteractiocalulatiometodofAFuentadAB isadoptedTedesidestgrefd-OFmotoso-fd-edoatesoiearspre computationalresultsofthe proposed dynamic modelarecompared withwindtunnel experimental data，confirmingthe accuracyof the numericalmethodandtheoreticalmodel.Numericalsimulationsareconductedforatandemcylindersystemat Reynolds number Re=150 with center-to-center spacing of 2D （where D is the cylinder diameter），massratio of2，and reduced velocityrangeof3～10.The influence of varyingcoetigspgstfsoesposaractestisistematicallaledulemostrateatelastic increasestheonsetreducedvelocityofVVintandemcylinders.Forin-linevbrationthevibrationamplitudeincreaseswithfowelocity untileachingatableaueHgherotionstissladstagerampiudesInofotevbatioamplideiitiallea andthendecreasesiticasingfloelocityddioallastecoeostissieas，teck-iveloitygeaaly widens，andthibrationampitudealsogows.Notablythesdyrevealstattecoeioifssectstepasediernebeeen thevibration of two cylinders，consequently altering their vibration amplitudes.

Keywords：vortex-inducedvibration;elasticoction;onliearspringforce;tandemdoublecyliders;vibrationphasedierence

双管/柱结构在工程中有着广泛应用，如电力电缆、悬索桥电缆、海洋立管、海底管道等[1-3]。（剩余11675字）