摘要
Earthmediumisnotcompletelyelastic,withitsviscosityresultinginattenuationanddispersionofseismicwaves.Mostviscoelasticnumericalsimulationsarebasedonthefinite-differenceandfinite-elementmethods.Targetedatviscoelasticnumericalmodelingformultilayeredmedia,theconstant-QacousticwaveequationistransformedintothecorrespondingwaveintegralrepresentationwithitsGreen'sfunctionaccountingforviscoelasticcoefficients.Anefficientalternativeforfull-waveformsolutiontotheintegralequationisproposedinthisarticlebyextendingconventionalfrequency-domainboundaryelementmethodstoviscoelasticmedia.Theviscoelasticboundaryelementmethodenjoysadistinctcharacteristicoftheexplicituseofboundarycontinuityconditionsofdisplacementandtraction,leadingtoasemi-analyticalsolutionwithsufficientaccuracyforsimulatingtheviscoelasticeffectacrossirregularinterfaces.NumericalexperimentstostudytheviscoelasticabsorptionofdifferentQvaluesdemonstratetheaccuracyandapplicabilityofthemethod.
出版日期
2017年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
