Study on Dynamic Characteristics of the Bistable Nonlinear Damper

A conventional dynamic vibration absorber based on resonance effect can hardly satisfy the requirement for low-frequency and broadband vibration control in actual engineering. Combined with passive and nonlinear vibration absorption strategy, this study employed nonlinear characteristics of the magn...

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Bibliographic Details
Published in:Applied sciences 2023-01, Vol.13 (2), p.878
Main Authors: Liu, Yunan, Li, Xianhui, Yang, Min, Zhao, Junjuan, Wang, Wenjiang
Format: Article
Language:English
Subjects:
Absorbers
bistable
Broadband
Computer simulation
Dynamic characteristics
Dynamic models
dynamic response
Equilibrium
Graphene
Investigations
Magnetic fields
nonlinear dynamics
Resonance
Vibration
vibration absorber
Vibration control
Vibration isolators
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Summary:A conventional dynamic vibration absorber based on resonance effect can hardly satisfy the requirement for low-frequency and broadband vibration control in actual engineering. Combined with passive and nonlinear vibration absorption strategy, this study employed nonlinear characteristics of the magnetic force, bistable structure to establish the dynamic model of the main system with a bistable vibration absorber. The nonlinear motion states of the structure under different excitation conditions were analyzed to explore the inherent relation between the chaotic and large amplitude motion and the vibration absorber’s operating performance. The effect laws of the structural parameters on the dynamic characteristics of the nonlinear vibration absorber and the main system were developed to obtain the optimal parameter settings in the case of resonance and off-resonance of the main system. These results provide an insightful theoretical foundation for the optimal design of the nonlinear vibration absorber.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13020878