دورية أكاديمية
Program konačnih razlika četvrtog reda točnosti za simulaciju rasprostiranja SH-vala u heterogenom viskoelastičnom sredstvu ; A fourth-order accurate finite-difference program for the simulation of SH-wave propagation in heterogeneous viscoelastic medium
| العنوان: | Program konačnih razlika četvrtog reda točnosti za simulaciju rasprostiranja SH-vala u heterogenom viskoelastičnom sredstvu ; A fourth-order accurate finite-difference program for the simulation of SH-wave propagation in heterogeneous viscoelastic medium |
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| المؤلفون: | Narayan, J.P., Indian Institute of Technology Roorkee, Department of Earthquake Engineering, Roorkee, India, jaypnfeq@iitr.ernet.in, Kumar, Vinay |
| المصدر: | Geofizika (geofizika-journal@gfz.hr); Vol.30 No.2; ISSN 0352-3659 (Print); ISSN 1846-6346 (Online) |
| بيانات النشر: | Andrija Mohorovicic Geophysical Institute |
| سنة النشر: | 2013 |
| المجموعة: | Hrčak - Portal of scientific journals of Croatia / Portal znanstvenih časopisa Republike Hrvatske |
| مصطلحات موضوعية: | SH-val, heterogeno visokoelastično sredstvo, SH-wave propagation, heterogeneous viscoelastic medium |
| الوصف: | Prikazan je program konačnih razlika (FD) na razmaknutoj mreži u vremenskoj domeni za simulaciju rasprostiranja sH-vala u viskoelastičnom heterogenom sredstvu. Uključivanje realističnog prigušenja u program temelji se na reološkom modelu poznatom kao generalizirano maxwellovo tijelo (gmB-EK). Valjanost implementiranog prigušenja je potvrđena usporedbom numerički dobivenih frekventno ovisnih kvalitativnih faktora i fazne brzine s onima izračunatim gmB-EK reološkim modelom i korištenjem Futter¬manove relacije. Točnost je potvrđena i usporedbom numerički izračunate amplifikacije tla pri rezonantnoj frekvenciji za različito prigušenje s analitičkim rješenjima. stabilnost i disperzija mreže su također detaljno istraženi. ; This article presents a staggered grid time-domain finite-difference (FD) program for the simulation of sH-wave propagation in a viscoelastic heteroge¬neous medium. The incorporation of realistic damping in FD program is based on a rheological model widely known as generalized maxwell body (gmB-EK). The accuracy of implementation of realistic damping is validated by comparing the numerically computed frequency dependent quality factors and phase velocity with the same computed using gmB-EK rheological model and the Futterman’s relationship. The accuracy was also validated by comparing the numerically com¬puted soil amplification at resonance frequency for different damping with the analytical solutions. The stability and grid dispersion are also studied in details. |
| نوع الوثيقة: | text |
| وصف الملف: | |
| اللغة: | English |
| العلاقة: | http://hrcak.srce.hr/116076Test; http://hrcak.srce.hr/file/171591Test |
| الإتاحة: | http://hrcak.srce.hr/116076Test http://hrcak.srce.hr/file/171591Test |
| حقوق: | Full-text papers can be used for personal or educational purposes only. Authors' and publisher's copyrights must be acknowledged. |
| رقم الانضمام: | edsbas.FED64CFD |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |