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1、河北工業(yè)大學(xué)碩士學(xué)位論文基于ANSYS的輸電線舞動(dòng)的仿真分析姓名：高仕趙申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：工程力學(xué)指導(dǎo)教師：李欣業(yè)20091201河北工業(yè)大學(xué)碩士學(xué)位論文iiGALLOPINGGALLOPINGGALLOPINGGALLOPINGOFOFOFOFPOWERPOWERPOWERPOWERTRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSIONIMULATIONIMULATIONIMULATIO

2、NIMULATIONNALYSISNALYSISNALYSISNALYSISLINESLINESLINESLINESBASEDBASEDBASEDBASEDONONONONANSYSANSYSANSYSANSYSSOFTWARESOFTWARESOFTWARESOFTWAREABSTRACTABSTRACTABSTRACTABSTRACTWiththedevelopmentofnationaleconomytransmissionlin

3、esoflongdistancegreatspanhavebeenwidelyused.Howeverinsomeareaslargedancingoftransmissionlineshavebeenoftenobservedduetothefactersoftopographyclimate.thelifespanoftransmissionlineshasanadverseimpact.Howtopreventcontrolgal

4、lopingoftransmissionlinesathomeabroadisveryconcerned.InthispaperANSYSsoftwareisemployedtosimulatetheprocessofgallopingtoprovidereferencefengineering.Beamelementwiththreedegreesoffreedommodlemematurecatenaryareappliedtofi

5、ndthestaticprofile.Theleveloftensionservesastheconvergencecriterionnamelythemodelcanbecompletedwhentheleveloftensionequalstotheknowntensionvalue.Theliftcoefficientcurvetheresistancecoefficientcurvetherotatecoefficientcur

6、veinANSYSareimposedbytheTABLE(Itsadvantageisthatlinearinterpolationcanbeused).Theliftresistancehavebeenappliedwiththefmofsurfaceloadwhichissimilartotheactualsituationthatthepointofthesurfaceloadisthelargestthesuspensionp

7、ointisthesmallest.Instantaneousspeedisreplacedwiththeaveragespeedinsmalltimestepsincetheliftresistancearethefunctionofspeed.Simulationarerespectivelypresentedf1DOFmodelbasedonDenHartogmechanism2DOFbasedonO.Nigolmechanism

8、3DOFmodelbasedonP.Yumechanism.Thepaperdiscussesonthesensitivityofthevariousstructuralparametersenvironmentalparameterssoastogetthechangesofamplitude.Multipointsfixingweighthammersisthataccdingtotheactualsituationthespano

9、fflatisdividedintoanumberofsubspanseachsubspanfixesaweightsothatthesefixingweightpointsbecomestaticindertoreducetheamplitudeofgalloping.Thenaturalfrequenciesoftheadjacentsubspanarecloseequaltoeachotherbecausethelengthsof

10、itsneighbingwiresaresimilarequivalentwhichmakesiteasiergallopinthesubspansthetransmissionlinesofantigallopisadversed.Basedonthesimulationapproachofthearrangedantihammeristhatthelengthsoftheadjacentsubspanarenotequalthesu

11、bspansoftheleftrightsideareasymmetryinpointsweightedwhichsplitthetransmissionlines.ANSYSanalysisresultsisshownthatpointsweightedwhichsplitthetransmissionlinesissuperitomultipointsfixingweighthammers.Twobundlethreebundlef

12、ourbundleconductsarecommonlyused.ByANSYSsimulationthispaperobtainsthatinthesameenvironmentstructureparametersgallopingamplitudeofthethreebundleconductisthesmallestgallopingamplitudeoftwobundleconductisthelargest.Therefea

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