000015840 001__ 15840
000015840 005__ 20161115135331.0
000015840 04107 $$aeng
000015840 046__ $$k2013-06-12
000015840 100__ $$avan der Seijs, M.
000015840 24500 $$aAn Improved Methodology for the Virtual Point Transformation of Measured Frequency Response Functions in Dynamic Substructuring

000015840 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015840 260__ $$bNational Technical University of Athens, 2013
000015840 506__ $$arestricted
000015840 520__ $$2eng$$aDynamic Substructuring methods play a significant role in the analysis of todays complex systems. Crucial in Dynamic Substructuring is the correct definition of the interfaces of the subsystems and the connectivity between them. Although this is straightforward practice for numerical finite element models, the experimental equivalent remains challenging. One of the issues is the coupling of the rotations at the interface points that cannot be measured directly. This work presents a further extension of the virtual point transformation that is based on the Equivalent Multi-Point Connection (EMPC) method and Interface Deformation Mode (IDM) filtering. The Dynamics Substructuring equations are derived for the weakened interface problem. Different ways to minimise the residuals caused by the IDM filtering will be introduced, resulting in a controllable weighting of measured Frequency Response Functions (FRFs). Also some practical issues are discussed related to the measurement preparation and post-processing. Special attention is given to sensor and impact positioning. New coherencelike indicators are introduced to quantify the consistency of the transformation procedures: sensor consistency, impact consistency and reciprocity.

000015840 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015840 653__ $$aFrequency Based Substructuring, Experimental Substructuring, NVH, Virtual Point Transformation

000015840 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015840 720__ $$avan der Seijs, M.$$ivan den Bosch, D.$$iRixen, D.$$ide Klerk, D.
000015840 8560_ $$ffischerc@itam.cas.cz
000015840 8564_ $$s342021$$uhttps://invenio.itam.cas.cz/record/15840/files/1539.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-RS 26 SIMULATION OF SOUND AND VIBRATION
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000015840 962__ $$r15525
000015840 980__ $$aPAPER