空间曲管流固耦合振动受力及响应分析

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中图分类号：TE973 文献标志码：A 文章编号：2095-2945（2025）28-0019-05

Abstract：Inthispaper，in-depthanalysisandresearcharecarriedoutontheforceandresponseofaspatialcurvedpipe underfluid-solidcoupledvibration.Fluid-solidcouplinginteractioniseflectedinbothfluidmechanicsandstructuralmechanics： fluidflowing inapipewillproducepresurefluctuations，whichspreadtotheentirepipesystemandcausevibrationofthepipe wallatthesametime，thevibrationofthepipewallwillcausepressurefluctuationswithinthefluid，formingaclosed-loop fluid-solidcoupledvibrationsystem.Foraspatialcurvedpipe，itsforcesituationismorecomplex.Duetotheexistencof curvedpipes，fluidwillundergoaforceddirectionchangewhenflowingthroughtheelbow，whichwillcausechangesinfluid speedandpressure，resultinginastrongcouplingefect.Thiscouplingeffectnotonlyafectsthemotionstateofthefluid，but alsohasa"straightening"efectonthecurvedpipeandchangesitsstressstate.Inthispaper，asectionof spatialcurvedpipe isselected，andbasedonANSYSWorkbenchplatform，theforceanalysisiscariedoutusingthebidirectionalfluid-solid coupling method to study the vibration response characteristics of the pipe.

Keywords： spatial curved pipe; fluid-structure coupling; fluctuating pressre;response; vibration force

在工程技术领域，空间曲管的流固耦合振动问题一直是备受关注的研究热点。（剩余3682字）