A two-level updating procedure of the component-mode synthesis model

Zhang, J.H.; Natke, H. G.

doi:10.1016/0888-3270(91)90049-b

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Dynamic Substructuring and Component Mode Synthesis1

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“…The economical benefits of component mode synthesis techniques in model updating work have attracted the scientist and engineering communities (Zhang and Natke, 1991;Link, 1997 Biondi andMuscolino, 2003;Masson et al, 2006;Cerulli et al, 2007) to use the coupling techniques in the reconciliation between the finite element models and the tested structures. The substructuring synthesis techniques discussed and presented in the preceding paragraphs basically have the same general ideas, however, in fact, substantive differences exist.…”

Section: Dynamic Substructuring and Component Mode Synthesismentioning

confidence: 99%

Model Updating for a Welded Structure Made from Thin Steel Sheets

Rani¹,

Stancioiu

Yunus

et al. 2011

AMM

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Dynamic behaviour of a welded structure made from thin metal sheets which has a large flat surface and has been assembled together by a number of scattered spot welds is investigated. An impact hammer and roving accelerometers are used in the modal tests to provide data to update the FE model. NASTRAN Solution 103 is used to compute natural frequencies and modes of interest. The large error of the initial FE model is largely reduced mainly by adjusting a crucial parameter of the bending moment of inertia ratio, 12I/T**3.

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