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Article

Multiharmonic Resonance Control Testing of an Internally Resonant Structure

1
College of Engineering, Swansea University, Swansea SA2 8PP, UK
2
Department of Mechanical Engineering, University of Bristol, Bristol BS8 1TH, UK
*
Author to whom correspondence should be addressed.
Current address: College of Engineering, Bay Campus, Swansea University, Fabian Way, Swansea SA1 8EN, UK.
Vibration 2020, 3(3), 217-234; https://doi.org/10.3390/vibration3030017
Received: 9 July 2020 / Revised: 7 August 2020 / Accepted: 1 September 2020 / Published: 3 September 2020
(This article belongs to the Special Issue Data-Driven Modelling of Nonlinear Dynamic Systems)
The experimental characterisation of a nonlinear structure is a challenging process, particularly for multiple degree of freedom and continuous structures. Despite attracting much attention from academia, there is much work needed to create processes that can achieve characterisation in timescales suitable for industry, and a key to this is the design of the testing procedure itself. This work proposes a passive testing method that seeks a desired degree of resonance between forcing and response. In this manner, the process automatically seeks data that reveals greater detail of the underlying nonlinear normal modes than a traditional stepped sine method. Furthermore, the method can target multiple harmonics of the fundamental forcing frequency, and is therefore suitable for structures with complex modal interactions. The method is presented with some experimental examples, using a structure with a 3:1 internal resonance. View Full-Text
Keywords: nonlinear vibration; experimental vibration; internal resonance nonlinear vibration; experimental vibration; internal resonance
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MDPI and ACS Style

Shaw, A.D.; Hill, T.L.; Neild, S.A.; Friswell, M.I. Multiharmonic Resonance Control Testing of an Internally Resonant Structure. Vibration 2020, 3, 217-234. https://doi.org/10.3390/vibration3030017

AMA Style

Shaw AD, Hill TL, Neild SA, Friswell MI. Multiharmonic Resonance Control Testing of an Internally Resonant Structure. Vibration. 2020; 3(3):217-234. https://doi.org/10.3390/vibration3030017

Chicago/Turabian Style

Shaw, Alexander D., Thomas L. Hill, Simon A. Neild, and Michael I. Friswell. 2020. "Multiharmonic Resonance Control Testing of an Internally Resonant Structure" Vibration 3, no. 3: 217-234. https://doi.org/10.3390/vibration3030017

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