By Matt Allen, Randy Mayes, Daniel Rixen
This first quantity of 8 from the IMAC-XXXII convention, brings jointly contributions to this significant region of analysis and engineering. the gathering provides early findings and case experiences on basic and utilized elements of Structural Dynamics, together with papers on:
- Linear Systems
- Substructure Modelling
- Adaptive Structures
- Experimental Techniques
- Analytical Methods
- Damage Detection
- Damping of fabrics & Members
- Modal Parameter Identification
- Modal trying out Methods
- System Identification
- Active Control
- Modal Parameter Estimation
- Processing Modal Data
Read Online or Download Dynamics of Coupled Structures, Volume 1: Proceedings of the 32nd IMAC, A Conference and Exposition on Structural Dynamics, 2014 PDF
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Extra resources for Dynamics of Coupled Structures, Volume 1: Proceedings of the 32nd IMAC, A Conference and Exposition on Structural Dynamics, 2014
FRFs are defined for several excitation DoFs and a few response DoFs. The experimental inertance matrix is a rectangular matrix of size n m where n is the number of response DoFs and m > n is the number of excited DoFs. For the use of Poly-LSCF method the transposed matrix is considered where n is the number of references and m is the number of outputs of the poly-reference method. 6a shows the stabilization plot for the mass loaded blade in the frequency range 0–150 Hz for a model order in the range 20–50.
10 Predicted FRF of the coupled system (—) vs. synthesized FRF of the component substructures (—) at two internal DoFs of the component substructures. (a) Effect of coupling on the mass loaded blade. (b) Effect of coupling on the two bladed turbine (Color figure online) data used for substructuring are the inertances measured over a set of excitation and response DoFs. These data are shared by the University of Wisconsin-Madison. Due to the lack of coherence between some reciprocal terms of the inertance matrix, Poly-LSCF modal identification is applied using a reduced set of reference DoFs.
The vehicle bodywork and interior). Such a decomposition into subsystems can be established by applying Dynamic Substructuring (DS) as presented by for instance . Literature shows various ways of nomenclature, often case specific. Within the family of TPA, we propose to make a distinction between classical TPA and component TPA methods. The first family identifies the interface forces between the active and passive component and thereafter applies these forces to the passive component. The latter family characterises the interface forces of the isolated active component after which these forces are applied at the interface between the active and passive component.