考慮流激振動的水工閘門受力分析

1、河海大學碩士學位論文考慮流激振動的水工閘門受力分析姓名：胡楠申請學位級別：碩士專業(yè)：水工結構工程指導教師：劉曉青20060301ABSTRACTSteelgateisaimportantpartofthehydraulicstructureInthecourseofthedestructionofthegate，thevibrationofthegateoftenoccursinthefollowingsituation：whenthe

2、gateisbeingopenedorclosedorpart—closedSohowtosolvetheflow—inducedvibrationresponseandthedynamiccharacteristic，hasbeenthemostimportantproblemsthatshouldbesolvedinthedesignofgateFristlythispaperhasinvestigatedandanalyzedth

3、evibrationsituationofgatewidelyandthoroughly，thereasonofgatevibrationandthecorrespondingsolutionareintroduced，theactivemethodtoanalyzethegatevibrationcharacteristicareintroduced，andtheirmeritsandfaultsareanalyzedThenthis

4、paperintroducestheprincipleandmethodoffiniteelementdynamicanalysisofspatialcompositestmcturelikegateOnthesebasis，thispaperuseattachedmassthatisthemostactivemethodtoconsiderthefluid—solidinteractionofgateandwaterandthedir

5、ectfilterfrequencymethodisusedtosolvedynamiccharacteristic，andthedynamiccharacteristicbothinairandwaterareanalyzedandcompared，thecorrespondingresultsaregivenTheactivemethodsofdynamiccharacteristicCall’tgiveoccurrenceofth

6、eflow—inducedvibrationresponse，Inthehydraulicmodelexperiment，thefluctuatingpressureunderalloperatingmodeismeasured，whichisspectrumanalyzedinthispaper，andThetime—spacecorrelationofandthedifferenceineach抒equencyoffluctuati

7、ngpressureareconsidered，thentamthemeasuredfluctuatingpressureastheloadintheFEManalysis，andusetherandomvibrationmethodtocalculatetheflow—inducedvibrationresponseofthegateSoamethodthatcombiningthemodelexperimentandnumerica

8、lcomputationarediscussedinthispaperTheflowinducedvibrationresponseoftheplanerecumbentgateinShangHaiqingshuiriveriscomputedinthismethod，andtheresultisreasonableandcredibilitythismethodCanbeextendtocomputetheotherhydraulic

9、structureslikeoverfalldam，guidewall，gatepierandSOon，whichisunderfluctuatingpressureTheplanerecumbentgateisanewkindofgate，aftercomparingwithsomeotheractivegates，itcanbepopularizedinthecityriverKeyWord：planerecumbentgate，F