1、華中科技大學(xué)碩士學(xué)位論文輸電線路靜平衡及動(dòng)力響應(yīng)的有限元分析姓名：王麗新申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：固體力學(xué)指導(dǎo)教師：楊文兵20040428IIABSTRACTThegallopingoftransmissionlineisahardproblemwhichhasbeenpaidgreatattentiontointhewld.Alongwiththedevelopmentofconstructionofelectricpowerthegr

2、eatspantransmissionlineofelectricityincreasesconstantly.Theharmcausedbythegallopingoftransmissionlinehasbeenmemeserious.Itcanleadatripbreakthelineevendestroythetransmissiontower.Thistookgreatthreattosystemofelectric.Howt

3、opredictcontrolthegallopingisalsoacurrentproblemcaredbytheelectricdepartment.Thispaperderivethestiffnessmatrixofthebeamelementaccdingtothenonlinearfiniteelementtheyatfirsttheiterationmethodwithmovingcodinatesfnonlinearca

4、lculatingbaseonthegeometryacteristicsofthebeamelement.Accdingtothenonlinearacteristicofthetransmissionlinethispaperusedtheconvergencefacttoadjustthecourseofiteration.Whilecalculatingthecurveofthetransmissionlineunderstat

5、icloadthisprocedurecanadjusttheinitialconditionautomaticallyaccdingtothedesigningtensiontomaketheresultofcalculationsatisfytheactualrequest.Newmarkmethodisusedtointhedynamicanalysesautomaticallyadjusttimestepindertoguara

6、nteetheconvergenceinthecourseofcalculating.Atthesametimeconsideringtheinfluenceonthegallopingcausedbythetensionofthetransmissionlineinthenextline.Addthepowerofmagicfieldinthedynamicalloadtoanalyzetheinfluencetothegallopi

7、ng.Thedesignofequipmenttopreventthegallopisalsoincludedintheprogram.Afiniteelementprogramwaswrittenbaseonthestudymentionedabove.ComparingthestaticresultwithAnsysthegallopingresultwiththedateintheliteratureshowsthattheerr

8、allsatisfiestherequest.Regulatethenumberofspansomeinitialconditionsuchlikewindspeedangleofattacktofindtherelationwithgallopbysimulatedwithcomputer.Thisprogramverifiesthemechanismofgalloptheinfluenceoftheequipmenttopreven