Investigation of a monostable nonlinear vibration isolator with the inertia-elastic boundary
Investigation of a monostable nonlinear vibration isolator with the inertia-elastic boundary
This paper proposes a new monostable nonlinear vibration isolator with the inertia-elastic boundary (IEB-MVI), and thoroughly investigates its performance and nonlinear dynamic behaviors. The theoretical model of IEB-MVI for vibration isolation is derived and experimentally validated. To show the vibration isolation performance improvement, the comparison study is performed between the IEB-MVI, a linear isolator and a monostable isolator without the inertia-elastic boundary (IEB). Results show that the IEB-MVI can abate the resonant vibration response by 4.93 dB in the low-frequency band and widen the effective isolation bandwidth by 35.2 % compared to the monostable isolator without the IEB; both the IEB-MVI and the monostable counterpart achieve the same broadband vibration isolation performance in the high-frequency band, which is significantly better than that achieved by the linear isolator. This indicates the benefit of the IEB for performance improvement of the monostable isolator. Next, the influence of the different IEB parameters on the performance is comprehensively studied. Finally, the study analyzes the bifurcation characteristics of the IEB-MVI, which develops insight into the isolator's nonlinear dynamic behaviors.
bifurcation, inertia-elastic boundary, monostable, nonlinear isolator, vibration isolation, Inertia-elastic boundary, Nonlinear isolator, Bifurcation, Monostable, Vibration isolation
Tong, Weihao
33066c28-23bd-4b5f-bddd-54d505c09777
Wei, Boyuan
1d0e05aa-e953-4821-a539-7baba403e105
Moshrefi-Torbati, Mohamed
65b351dc-7c2e-4a9a-83a4-df797973913b
Zhou, Xu
a04f4b72-b1b5-408b-88a6-1adf0cfaa333
Yurchenko, Daniil
51a2896b-281e-4977-bb72-5f96e891fbf8
Yang, Kai
eb88e4fd-15d1-4405-88b4-ceca344a5545
May 2024
Tong, Weihao
33066c28-23bd-4b5f-bddd-54d505c09777
Wei, Boyuan
1d0e05aa-e953-4821-a539-7baba403e105
Moshrefi-Torbati, Mohamed
65b351dc-7c2e-4a9a-83a4-df797973913b
Zhou, Xu
a04f4b72-b1b5-408b-88a6-1adf0cfaa333
Yurchenko, Daniil
51a2896b-281e-4977-bb72-5f96e891fbf8
Yang, Kai
eb88e4fd-15d1-4405-88b4-ceca344a5545
Tong, Weihao, Wei, Boyuan, Moshrefi-Torbati, Mohamed, Zhou, Xu, Yurchenko, Daniil and Yang, Kai
(2024)
Investigation of a monostable nonlinear vibration isolator with the inertia-elastic boundary.
Communication in Nonlinear Science and Numerical Simulations, 132, [107887].
(doi:10.1016/j.cnsns.2024.107887).
Abstract
This paper proposes a new monostable nonlinear vibration isolator with the inertia-elastic boundary (IEB-MVI), and thoroughly investigates its performance and nonlinear dynamic behaviors. The theoretical model of IEB-MVI for vibration isolation is derived and experimentally validated. To show the vibration isolation performance improvement, the comparison study is performed between the IEB-MVI, a linear isolator and a monostable isolator without the inertia-elastic boundary (IEB). Results show that the IEB-MVI can abate the resonant vibration response by 4.93 dB in the low-frequency band and widen the effective isolation bandwidth by 35.2 % compared to the monostable isolator without the IEB; both the IEB-MVI and the monostable counterpart achieve the same broadband vibration isolation performance in the high-frequency band, which is significantly better than that achieved by the linear isolator. This indicates the benefit of the IEB for performance improvement of the monostable isolator. Next, the influence of the different IEB parameters on the performance is comprehensively studied. Finally, the study analyzes the bifurcation characteristics of the IEB-MVI, which develops insight into the isolator's nonlinear dynamic behaviors.
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Accepted/In Press date: 30 January 2024
e-pub ahead of print date: 1 February 2024
Published date: May 2024
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Publisher Copyright:
© 2024
Keywords:
bifurcation, inertia-elastic boundary, monostable, nonlinear isolator, vibration isolation, Inertia-elastic boundary, Nonlinear isolator, Bifurcation, Monostable, Vibration isolation
Identifiers
Local EPrints ID: 489275
URI: http://eprints.soton.ac.uk/id/eprint/489275
ISSN: 1007-5704
PURE UUID: a0b365e9-8dc5-43b8-8444-9111c0aa54d8
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Date deposited: 19 Apr 2024 16:31
Last modified: 11 Sep 2024 02:33
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Contributors
Author:
Weihao Tong
Author:
Boyuan Wei
Author:
Xu Zhou
Author:
Daniil Yurchenko
Author:
Kai Yang
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