Trapping of vibration energy into a set of resonators: theory and application to aerospace structures

Date
2012
Authors
Carcaterra, A.
Akay, A.
Bernardini, C.
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Source Title
Mechanical Systems and Signal Processing
Print ISSN
0888-3270
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Volume
26
Issue
1
Pages
1 - 14
Language
English
Type
Article
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Abstract

This paper presents the theory of a novel mechanism of energy absorption and induced damping in structural systems and its application to aerospace industry. The underlying principles of the physical phenomena have been addressed in several earlier publications, which focused on prototypical systems of absorbers that consist of a set of single-degree-of-freedom resonators. This paper generalizes those theoretical developments to the case of a cluster of beams attached to a continuous primary structure, to develop predictive methods for the expected performance of this new type of absorber, with particular emphasis on its optimal design. An embodiment of the conceived device is illustrated for an aerospace structure, a satellite, with the purpose of reducing the vibration of the electronic components on board during lift-off. Experimental results illustrate the feasibility and the attractiveness of this new absorption technique. © 2011 Elsevier Ltd. All rights reserved.

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Keywords
Apparent damping, Fuzzy damping, Passive vibration damping, Shock attenuation, Aerospace structure, Electronic component, Optimal design
Citation
Published Version (Please cite this version)