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Vibration isolation performance of a beam clamped with torsional quasi-zero-stiffness isolator
Journal of Vibration and Control, 2023Elastic beam structures connected by hinges are a common basic component of many mechanical systems. In this study, the nonlinear transverse vibration of a beam with one end free and the other end simply supported with a torsion spring is investigated.
Yishen Tian +4 more
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A torsion quasi-zero stiffness vibration isolator
Journal of Sound and Vibration, 2015Abstract 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. A pre-compressed cam–roller mechanism is designed to provide torsional negative stiffness that counteracts with the positive torsion stiffness ...
Jiaxi Zhou, Daolin Xu, Steven Bishop
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A torsion–translational vibration isolator with quasi-zero stiffness
Nonlinear Dynamics, 2019In this paper, a torsion–translational quasi-zero-stiffness (TT QZS) isolator with convex ball–roller mechanisms was proposed to attenuate the torsion and translational vibrations along shaft systems simultaneously. The mathematical model of the isolator was established, based on which the static characteristics of the isolator were analyzed and the ...
Qianlong Zhang +3 more
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A tensegrity-based torsional vibration isolator with broad quasi-zero-stiffness region
Mechanical Systems and Signal ProcessingZhi-Ying Gao, Li-Yuan Zhang
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Flexible Elastomeric Couplings for Torsional Vibration Isolation
SAE Technical Paper Series, 1984<div class="htmlview paragraph">CURRENT DESIGNS of earthmoving equipment call for special techniques for controlling torsional vibration. Most new designs have remote mounted inertias in the form of heavy duty torque converters, transmissions, generators, hydraulic pumps, and the like.
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A semi‐active isolator for torsional vibrations
PAMM, 2008AbstractModern combustion engines produce strong rotational vibrations which could damage elements of the drive train such as the gearbox. A solution to this problem is to mount an isolating device on the output side of the motor. Its function is to filter the torque oscillations to deliver a clean averaged torque to the rest of the drive train ...
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Torsional vibration isolating motor mounting arrangement and method of making the same
The Journal of the Acoustical Society of America, 1980Motor mounting system is designed so that the torsional mode resonant or natural frequency is less than twice the frequency of the motor power supply divided by the square root of two (√2). The illustrated mounting arrangements are "soft" with respect to torsional mode vibrations, and yet are "stiff" with respect to axial and tilting mode vibrations ...
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Comparative study on non-traditional torsional vibration isolators for automotive clutch dampers
Noise Control Engineering Journal, 2018In this study, the torque transmissibility of non-traditional passive torsional vibration isolators used for automotive clutch dampers were investigated both theoretically and experimentally. The vibration isolation performance of two types of non-traditional passive torsional vibration isolators, an anti-resonant vibration isolator and a centrifugal ...
Mai Van Ngoc, S.C. Shin, G.W. Kim
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Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2015
The input torque vibrations (i.e. the fluctuations or ripples) induced by internal-combustion engines is a significant source of noise, vibration and harshness issues, which cause problems in automotive powertrains. This is because the torque vibrations are primarily transmitted to the input shaft of automotive transmissions (e.g.
Gi-Woo Kim, Soon-Chul Shin
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The input torque vibrations (i.e. the fluctuations or ripples) induced by internal-combustion engines is a significant source of noise, vibration and harshness issues, which cause problems in automotive powertrains. This is because the torque vibrations are primarily transmitted to the input shaft of automotive transmissions (e.g.
Gi-Woo Kim, Soon-Chul Shin
openaire +1 more source