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Large-scale transmission tower seismic response analysis of non- stationary random

67f9 (1) :86-975HammondJK. Ontheresponseofsingleandmulti-degreeoffreedomsystemstonon-stationaryran-domexcitation. JournalofSoundandVibration,[link widoczny dla zalogowanych], 1978l (6) :393-4166 side project with the random vibration . Beijing National Defence Industry Publishing hanging , 19957JiahsoLin,[link widoczny dla zalogowanych], WenshouZhangPseudo-excitationalgorithmfornon-stationaryrandomseismicrespons-es. EngineeringStructures, 1994I16 (4) £ 27O a 276AnalysisofNon - StationaryRandomSeismicResponsesofaLargeTransmissionTowerShiShaoqing (Dept.ofArchiteeureandCivilEngr., ChongqingLogisticalEngr.UniversityChongqing,[link widoczny dla zalogowanych], 400041) diangdiesheng (InstituteofVibration.NorthwestPolytechnicUniversityXian,[link widoczny dla zalogowanych], 710072) AbStractAnefficientanalysisoftheiion-stationaryrandomseismicresponseoflargetransmissiontower-sispresented. Thestructureisdlscretizedbythefinitee] ementmethodforgettingthetime-invariantmassandstiffnessmatrices. Intheanalysis, itisa ~ sumedthatthestruetueepossessclassicaldampingpropertiesandthenormalmodemethodisapplied. BasedonPriestleysevolutionaryspectrumtheory. theevolution-aryspectraandthetime. . variantcros ~. . correlationfunctionoftherespOnseforthestructuresubjectedtonon-stationaryrandomseismicexcitationareinvestlgated. Thenon-stationaryrandomseismicexcitatio; * isrepresentedbytheproductofastationaryrandomprocesswithzeromeanandadeterministicenvelopefunctionoftime. Thenumericalexamplesshowthatthenon-stationaryresponseofstructureisaffectedsignificantlybythesoiltypesanddifferentparametersofmodulationfunction,[link widoczny dla zalogowanych], Keywordstnonstationaryrandomvibration} finiteelementmethod} transmissiontower} evolutionaryspectrum ~ analysisofseismicresponse first author Dan Shaoqing Male , Doctor. March 1966 students.

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