Journal ArticleDOI
A dynamic reconfigurable nonlinear energy sink
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TLDR
In this paper, a novel energy absorber that essentially offers nonlinearity and a time-dependent inertial mass is presented, where the resonant frequency can be modulated dynamically by using the angular velocity to trigger a controlled target energy transfer (TET).About:
This article is published in Journal of Sound and Vibration.The article was published on 2021-03-03. It has received 36 citations till now. The article focuses on the topics: Vibration isolation & Nonlinear system.read more
Citations
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Journal ArticleDOI
On the detailed design of a quasi-zero stiffness device to assist in the realisation of a translational Lanchester damper
TL;DR: In this paper , a translational Lanchester damper is proposed to add damping to a structure at a point using a series combination of a viscous damper and a mass, which changes the dynamic behavior of the device, introducing a resonance frequency due to the interaction of the stiffness and inertia forces.
Journal ArticleDOI
On the detailed design of a quasi-zero stiffness device to assist in the realisation of a translational Lanchester damper
TL;DR: To achieve a device that behaves broadly as a Lanchester damper rather than a dynamic vibration absorber, a very low stiffness is required, and this is the focus of this paper.
Journal ArticleDOI
The vibration analysis of the CNC vertical milling machine spindle system considering nonlinear and nonsmooth bearing restoring force
TL;DR: To study the dynamic characteristics of the CNC vertical milling machine spindle system under unbalanced force, the lumped mass method is applied to propose a novel dynamic model that can benefit the structural design of the spindle, optimize the bearings selection, as well as improve the machining accuracy.
Journal ArticleDOI
Steady-state response of a viscoelastic beam with asymmetric elastic supports coupled to a lever-type nonlinear energy sink
TL;DR: In this article, a lever-type nonlinear energy sink (LNES) with asymmetric elastic boundary was integrated into viscoelastic Euler-Bernoulli beam condition to attenuate vibration.
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Investigation on the energy trapping and conversion performances of a multi-stable vibration absorber
Xingbao Huang,Bintang Yang +1 more
TL;DR: In this paper, the authors presented the principle design of tri-stable systems and mathematical modeling of a 2-dof tri-stable DVA and energy harvester, and the energy harvesting performance of multi-stable energy harvesting was evaluated under impulsive excitations and harmonic vibrations.
References
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Book
Nonlinear Targeted Energy Transfer in Mechanical and Structural Systems
Alexander F. Vakakis,Oleg Gendelman,Lawrence A. Bergman,D. M. McFarland,Gaëtan Kerschen,Young S. Lee +5 more
TL;DR: In this article, the authors proposed a method for targeted energy transfer in discrete linear Oscillators with single-DOF nonlinear energy sinks, and demonstrated the effect of TRCs and TET in the Damped and Forced System.
Journal ArticleDOI
Energy Pumping in Nonlinear Mechanical Oscillators: Part II—Resonance Capture
TL;DR: In this paper, the authors study energy pumping in an impulsively excited, two-degrees-of-freedom damped system with essential (nonlinearizable) nonlinearities by means of two analytical techniques.
Journal ArticleDOI
Energy pumping in nonlinear mechanical oscillators : Part I : Dynamics of the underlying Hamiltonian systems
TL;DR: In this paper, the authors presented numerical evidence of energy pumping in coupled nonlinear mechanical oscillators, i.e., of one-way (irreversible) channeling of externally imparted energy from the linear to the nonlinear part of the system, provided that the energy is above a critical level.
Journal ArticleDOI
Complicated dynamics of a linear oscillator with a light, essentially nonlinear attachment
Young S. Lee,Gaëtan Kerschen,Alexander F. Vakakis,Panagiotis Panagopoulos,Lawrence A. Bergman,D. Michael McFarland +5 more
TL;DR: In this paper, the dynamics of a two-degree-of-freedom (DOF) nonlinear system consisting of a grounded linear oscillator coupled to a light mass by means of an essentially nonlinear (nonlinearizable) stiffness is studied.
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Multi-direction vibration isolation with quasi-zero stiffness by employing geometrical nonlinearity
TL;DR: In this article, the authors proposed a novel vibration isolator with 3D quasi-zero-stiffness (QZS) property, which applied symmetrically scissor-like structures in the horizontal directions, together with a traditional spring-mass-damper system assembled vertically with positive stiffness.