000013721 001__ 13721
000013721 005__ 20161114170253.0
000013721 04107 $$aeng
000013721 046__ $$k2011-05-25
000013721 100__ $$aGoller, B.
000013721 24500 $$aEfficient  Model Updating of the Goce Satellite Based on Experimental Modal Data

000013721 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013721 260__ $$bNational Technical University of Athens, 2011
000013721 506__ $$arestricted
000013721 520__ $$2eng$$aThe accurate prediction of the structural response of spacecraft systems during launch and ascent phase is a crucial aspect in design and verification stages which requires accurate numerical models. The enhancement of numerical models based on experimental data is denoted model updating and focuses on the improvement of the correlation between finite element (FE) model and test structure. In aerospace industry the judgment of the agreement between model and real structure involves the comparison of the modal properties of the structure. Model updating techniques have to handle several difficulties, like incomplete experimental data, measurement errors, non-unique solutions and modeling uncertainties. To cope with the computational challenges associated with the large-scale FE-models involving up to over one million degrees of freedom (DOFs), enhanced strategies are required. A large-scale numerical example, namely a satellite model, will be used for demonstrating the applicability of the employed updating procedure to complex aerospace structures.

000013721 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013721 653__ $$aModel updating, model validation, uncertainty quantification, model reduction

000013721 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013721 720__ $$aGoller, B.$$iBroggi, M.$$iCalvi, A.$$iSchueller, G.
000013721 8560_ $$ffischerc@itam.cas.cz
000013721 8564_ $$s520161$$uhttps://invenio.itam.cas.cz/record/13721/files/568.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 19 Progress and Challenges in Spacecraft Structural Dynamics.
000013721 962__ $$r13401
000013721 980__ $$aPAPER