TY - GEN
T1 - Model order reduction for thermomechanically coupled problems
AU - Steenhoek, Alexander M.
AU - Rixen, Daniel J.
AU - Nachtergaele, Philippe
PY - 2009
Y1 - 2009
N2 - In this paper reduction methods for multiphysical models are investigated. A thermomechanical problem is illustrated. First modal truncation of the state space modes of the system is investigated and the basis found from this approach represents the behavior of the system well. However, the method requires complicated complex modes and therefore we introduce a basis built from the bases of the uncoupled problems as a second approach, because these are simpler to build. One can improve on this basis again by inclusion of a correction for the coupling effect, which is derived from a first order perturbation analysis.
AB - In this paper reduction methods for multiphysical models are investigated. A thermomechanical problem is illustrated. First modal truncation of the state space modes of the system is investigated and the basis found from this approach represents the behavior of the system well. However, the method requires complicated complex modes and therefore we introduce a basis built from the bases of the uncoupled problems as a second approach, because these are simpler to build. One can improve on this basis again by inclusion of a correction for the coupling effect, which is derived from a first order perturbation analysis.
UR - http://www.scopus.com/inward/record.url?scp=84861556676&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84861556676
SN - 9781605609614
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
BT - IMAC-XXVII
T2 - 27th Conference and Exposition on Structural Dynamics 2009, IMAC XXVII
Y2 - 9 February 2009 through 12 February 2009
ER -