Details

Autor(en) / Beteiligte

• Amin, N. M.
• Krisnamoorthy, R. R.

Titel

Krylov Subspace model order reduction for FE seismic analysis

Ist Teil von

• 2012 IEEE Symposium on Business, Engineering and Industrial Applications, 2012, p.239-243

Ort / Verlag

IEEE

Erscheinungsjahr

2012

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• A model order reduction via Krylov Subspace (KS-MOR) is utilized into FE seismic analysis to reduce computational time. KS-MOR generates an effective set of orthogonal basis vectors that define the subspace. In this paper, the procedure of KS-MOR is introduced and a numerical example of 3D isolated bridge model was solved subjected to Kobe earthquake and Tohoku earthquake. The advantage of isolated bridge is clearly shown in the reduction of displacement at superstructure at high speed loading case (Kobe earthquake). In a case of low speed loading (Tohoku earthquake), seismic isolation bearing eliminates the high frequency oscillation. Both earthquakes loading case show deceasing of stress level.