Journal ArticleDOI
Beneficial performance of a quasi-zero-stiffness vibration isolator with time-delayed active control
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TLDR
In this paper, a quasi-zero-stiffness vibration isolator (QZS-VI) with a simple linear time-delayed active control strategy is investigated.About:
This article is published in International Journal of Mechanical Sciences.The article was published on 2014-05-01. It has received 111 citations till now. The article focuses on the topics: Vibration control & Vibration isolation.read more
Citations
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Nonlinear dynamic characteristics of a quasi-zero stiffness vibration isolator with cam–roller–spring mechanisms
TL;DR: In this paper, a piecewise nonlinear dynamic model is formulated in the consideration of possible disengagement between the cam and roller, and the analytical solution of the amplitude-frequency relationship is derived by using the averaging method and further verified by numerical simulations.
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Design and experiment of a high-static-low-dynamic stiffness isolator using a negative stiffness magnetic spring
TL;DR: In this paper, a negative stiffness magnetic spring (NSMS) is employed to reduce the resonance frequency of the linear isolator, and the effect of the geometric parameters of the magnets on the stiffness characteristic of the NSMS is analyzed.
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Vibration isolation by exploring bio-inspired structural nonlinearity
TL;DR: M Mathematical modeling and analysis of the proposed bio-inspired limb-like structure (LLS) reveal that it has very beneficial nonlinear stiffness which can provide flexible quasi-zero, zero and/or negative stiffness, and these non linear stiffness properties are adjustable or designable with structure parameters.
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A torsion quasi-zero stiffness vibration isolator
TL;DR: In this paper, a torsion vibration isolator with quasi-zero stiffness (QZS) is proposed to attenuate the transmission of torsional vibration along a shaft system, which also plays a role of coupling between shafts.
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Post-capture vibration suppression of spacecraft via a bio-inspired isolation system
TL;DR: Numerical simulations show that the BIQS system has a much better performance than the SMD system under either periodic or impulsive forces and offers a highly efficient passive way for vibration suppressions of free-floating spacecraft.
References
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Journal ArticleDOI
A study of a nonlinear vibration isolator with a quasi-zero stiffness characteristic
TL;DR: In this paper, a vibration isolator consisting of a vertical linear spring and two nonlinear pre-stressed oblique springs is considered, and the softening parameter leading to quasi-zero dynamic stiffness at the equilibrium position is obtained as a function of the initial geometry, pre-stress and the stiffness of the springs.
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Force and displacement transmissibility of a nonlinear isolator with high-static-low-dynamic-stiffness
TL;DR: In this paper, the authors investigated the dynamic behavior of a nonlinear isolator supporting a lumped mass by modelling the dynamic system as a single-degree-of-freedom system.
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On the force transmissibility of a vibration isolator with quasi-zero stiffness
TL;DR: In this article, the authors derived the force transmissibility of a quasi-zero-stiffness isolator, which consists of a vertical spring and two oblique springs that are either linear, linear with pre-stress or softening nonlinear with prestress.
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A vibration isolation system in low frequency excitation region using negative stiffness structure for vehicle seat
Thanh Danh Le,Kyoung Kwan Ahn +1 more
TL;DR: In this paper, a vibration isolation model for improving vibration isolation effectiveness of the vehicle seat under low excitation frequencies is proposed, which uses two symmetric negative stiffness structures (NSS) in parallel to a positive stiffness structure.
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Evaluation of whole-body vibration in vehicles
G.S. Paddan,Michael J. Griffin +1 more
TL;DR: In this article, the vibration in 100 different vehicles has been measured, evaluated and assessed according to British Standard BS 6841 (1987) and International Standard ISO 2631 (1997).