Results 151 to 160 of about 705 (187)

A semi‐active isolator for torsional vibrations

PAMM, 2008
AbstractModern 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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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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Torsional vibration isolating motor mounting arrangement and method of making the same

The Journal of the Acoustical Society of America, 1980
Motor 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, 2018
In 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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Research on the torque transmissibility of the passive torsional vibration isolator in an automotive clutch damper

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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Using Specimen Geometry to Isolate Flexural and Torsional Vibration Modes During Sonic Resonance

Journal of Testing and Evaluation, 2016
Abstract The ASTM E1875 method of sonic resonance is a convenient means of obtaining the elastic material properties of materials, particularly at high temperatures. The technique is performed by exciting a rectangular bar specimen to vibrate over a range of frequencies while measuring the amplitude of the bar’s vibrations.
Ryan B. Berke, Mark E. Walter
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Sensitivity analysis of parametric errors on the performance of a torsion quasi-zero-stiffness vibration isolator

International Journal of Mechanical Sciences, 2017
Abstract A quasi-zero-stiffness (QZS) isolator can perform a good function of low-frequency vibration isolation, but its designed ultra-low dynamic stiffness could be notably affected by parametric errors, which usually occur in the manufacturing and assembling process.
Kai Wang, Jiaxi Zhou, Daolin Xu
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Experimental and simulation study on the vibration isolation and torsion elimination performances of interconnected air suspensions

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2015
This paper extends recent research on the dynamic performance of an interconnected air suspension. Although some aspects of the dynamic performance of such suspension systems have been studied, little attention has yet been paid to the torsion elimination performance or to the way in which the form of interconnection influences the interconnecting ...
Zhongxing Li, Longyu Ju, Hong Jiang, Xing Xu, Mei Li   +4 more
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Lightweight, ultra-low-frequency torsional vibration isolator based on Kresling origami

Smart Materials and Structures
Abstract Springs inspired by the Kresling origami pattern have recently gained prominence as a foundation for developing functional engineering systems with versatile properties, catering to niche applications across various technological fields.
Ravindra Masana, Shadi Khazaaleh, Mohammed F Daqaq   +2 more
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The vibration isolation characteristics of torsion bar spring with negative stiffness structure

Mechanical Systems and Signal Processing, 2022
Chuanyun Yu, Qidi Fu, Jianrun Zhang, Ning Zhang   +3 more
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