Experimental‐Numerical Substructuring: a Comparison of Assemblies in Primal and Dual Forms

Experimental‐Numerical Substructuring: a Comparison of Assemblies in Primal and Dual Forms A hybrid dynamic substructuring method which combines experimentally measured and finite element (FE) modeled substructures in primal and dual form is presented. On the one hand, the model of the FE substructure is reduced to decrease the computational costs in the analysis of the hybrid model. On the other hand, the experimental substructure is measured while an instrumented fixture (known as Transmission Simulator) is assembled to its interface, providing the required interface dynamics for a high quality experimental model. The model of the transmission simulator is decoupled after measurement from the experimental substructure. Both the coupling and decoupling procedures are performed once with interface displacement (primal form) and once with interface forces (dual form). The hybrid substructuring methods are applied on an example and a comparison between both methods are presented. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Proceedings in Applied Mathematics & Mechanics Wiley

Experimental‐Numerical Substructuring: a Comparison of Assemblies in Primal and Dual Forms

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Publisher
Wiley
Copyright
Copyright © 2017 Wiley Subscription Services
ISSN
1617-7061
eISSN
1617-7061
D.O.I.
10.1002/pamm.201710002
Publisher site
See Article on Publisher Site

Abstract

A hybrid dynamic substructuring method which combines experimentally measured and finite element (FE) modeled substructures in primal and dual form is presented. On the one hand, the model of the FE substructure is reduced to decrease the computational costs in the analysis of the hybrid model. On the other hand, the experimental substructure is measured while an instrumented fixture (known as Transmission Simulator) is assembled to its interface, providing the required interface dynamics for a high quality experimental model. The model of the transmission simulator is decoupled after measurement from the experimental substructure. Both the coupling and decoupling procedures are performed once with interface displacement (primal form) and once with interface forces (dual form). The hybrid substructuring methods are applied on an example and a comparison between both methods are presented. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Journal

Proceedings in Applied Mathematics & MechanicsWiley

Published: Jan 1, 2017

References

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