Avoiding Mode Pairing when Updating Finite Element Models
1997 (English)Report (Other academic)
Updating nite element models of complex mechanical structures requires some extra considerations. It is stressed that the two most important aspects on updating finite element models are parameter estimation properties and computational expenses. A novel mode-pairing free model updating formulation is found to hav egood parameter estimation properties. The computational expenses are reduced with a semi-fixed modal basis, kept fixed during several iterations.
Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 1997. , 7 p.
LiTH-ISY-R, ISSN 1400-3902 ; 1974
Parameter estimation, Mechanical systems, Nonlinear programming, Model reduction
IdentifiersURN: urn:nbn:se:liu:diva-55397ISRN: LiTH-ISY-R-1974OAI: oai:DiVA.org:liu-55397DiVA: diva2:315983