Hybrid method for the computation of dynamic soil-structure ...

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IntroductionAlternatives for time domain dynamic SSIIntroductionHybrid methodTime Domain BEMFE-BEConclusions■ Linear calculations: frequency domain boundary element method .■ Non-linear calculations:Fundamental solution Soil stiffness ResponseTime domain BEM ω → t t tHybrid domain methodusing soil flexibilityin the time domainHybrid frequency-timedomain analysisω ω → t tω ω ω ↔ tObjectiveInvestigate the applicability of time domain soil-structure interaction methods.LMSSMat Hybrid method for the computation of dynamic soil-structure interaction in the time domain - p. 4/44
IntroductionPresentation outlineIntroductionHybrid methodTime Domain BEM■ Dynamic soil-structure interaction methodology◆ Flexibility in the time domainyzxP ztFE-BEConclusions◆ Time domain boundary elements■ Implementation of a FE-BE couplingΩ bΩ sΣ rsΣ bszyxΩ rLMSSMat Hybrid method for the computation of dynamic soil-structure interaction in the time domain - p. 5/44
Page 2 and 3: IntroductionFramework: dynamic soil
Page 6 and 7: IntroductionHybrid methodTime Domai
Page 8 and 9: Hybrid domain methodFrequency domai
Page 10 and 11: Hybrid domain methodTime domain sti
Page 12 and 13: Asymptotic expansion for ω → ∞
Page 14 and 15: Asymptotic expansion for ω → ∞
Page 16 and 17: Hybrid domain methodDiscretisation
Page 18 and 19: Hybrid domain methodCalculation of
Page 20 and 21: Time domain BEMFrequency domain Gre
Page 22 and 23: Time domain unit step response: ∆
Page 24 and 25: Time domain BEMSquare load on a hal
Page 26 and 27: Time domain BEMCalculation of the s
Page 28 and 29: IntroductionHybrid methodTime Domai
Page 30 and 31: FE-BE couplingIntroductionRoad prop
Page 32 and 33: FE-BE couplingFinite element model
Page 34 and 35: FE-BE couplingFinite element equati
Page 36 and 37: FE-BE couplingThe dynamic soil-stru
Page 38 and 39: FE-BE couplingHybrid domain methodI
Page 40 and 41: FE-BE couplingThe structural respon
Page 42 and 43: FE-BE couplingRetrospective frequen
Page 44: ConclusionsDynamic soil-structure i

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