Page 163 - 《水资源与水工程学报》2023年第4期
P. 163

!34 " ! 4 #                       & ' ( ) & * + , -                               Vol.34No.4
               2023 $ 8%                JournalofWaterResources&WaterEngineering                 Aug.,2023

            DOI:10.11705/j.issn.1672-643X.2023.04.19


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                 MNOPQ:TV663   7RSTU:A    7VWQ:1672643X(2023)04015908
                        Staticanddynamicanalysisofecologicalbottom axisdriven

                                             flapgateinlakeandriver

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                                   1
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                        CHENWei,WANGChen,LIJinyu,YANGGuihai,WANGZhengzhong
                 (1.ChinaRailwayWaterConservancy&HydropowerPlanningandDesignGroupCo.,Ltd.,Nanchang330029,China;
                   2.CollegeofWaterResourcesandArchitecturalEngineering,NorthwestA&FUniversity,Yangling712100,China)
                 Abstract:Thebottomaxisdrivenflapgate,asanoveltypeofriverlandscapegate,iswidelyusedinriv
                 erconservancyprojectsduetotheecologicalbenefitsitbringsforth.However,itisonlyputintoservice
                 forashorttime ,thestructuraldesigntheoryisnotyetfullydeveloped,andtherearefewreferenceson
                 thefiniteelementcalculationresearchofthegate.Inviewofthis ,thenumericalsimulationmethodsof
                 thebottomaxisdrivenflapgatewassummarizedfocusingonitsstaticanddynamiccharacteristics.Taking
                 aprojectasanexample ,thestaticanddynamiccharacteristicsofthebottomaxisdrivenflapgatestruc
                 tureundertheactionofwaterpressurewasinvestigatedusingthenumericalcalculationmethodofCFD-
                 CSDcoupling.Firstly ,thewaterpressureofthegateunderdifferentopeningconditionswasnumerically
                 simulated ,thenthewaterloadcalculatedbyunidirectionalfluid-solidcouplingmethodwasappliedto
                 thegatestructure ,basedonwhichthechangingtrendofthestressanddisplacementofeachcomponentof
                 thegatewiththechangesofopeningdegreeswasanalyzed.Meanwhile ,thedryandwetmodesofthegate
                 structurewereanalyzedtostudytheinfluenceofwaterinfrontofthegateonthenaturalvibrationmode
                 andfrequencyofthegate.Theanalysisresultsshowthatthestressanddeformationofeachcomponent
                 reachedthemaximumvalueinthefullclosurecondition ,themaximumstressreached200.79MPa,and
                 themaximumdisplacementvaluewas47.703mm ,whichgraduallydecreasedwiththeincreaseofthe
                 gateopeningdegree.Inaddition ,thenaturalvibrationcharacteristicsofthegatewassignificantlyaffected
                 bythewaterinfrontofthegate.Therefore,thefluid-solidcouplingeffectshouldbeconsideredwhen

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