Design and experimental study of a quasi-zero-stiffness vibration isolator incorporating transverse groove springs

2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Chaoran Liu ◽  
Kaiping Yu
Keyword(s):  
Experimental Study ◽  
Vibration Isolator

scholarly journals Experimental Study of Scissor-like-structure Vibration Isolator

2020 ◽  
Vol 926 ◽  
pp. 012001
Author(s):  
Yang Liu ◽  
Wei Zhang ◽  
Shuangbao Li ◽  
Hengjia Zhu
Keyword(s):  
Experimental Study ◽  
Vibration Isolator ◽  
Structure Vibration

A new model of a hydraulic leveraged dynamic anti-resonance vibration isolator under base excitation: A theoretical and experimental study

2019 ◽  
Vol 25 (16) ◽  
pp. 2282-2292 ◽  
Author(s):  
Niuniu Liu ◽  
Zeyu Jin ◽  
Hongxing Hua
Keyword(s):  
Mathematical Model ◽  
Experimental Study ◽  
Vibration Isolation ◽  
Resonance Vibration ◽  
Vibration Isolator ◽  
Base Excitation ◽  
New Model ◽  
Isolation Frequency ◽  
Designed Experiment ◽  
Isolation Performance

Two models have previously been commonly used to predict the isolation performance of a hydraulic leveraged dynamic anti-resonance vibration isolator. The models have deficiencies, however, in considering the volumetric stiffness of the isolator. In this paper, a new model is proposed to improve the accuracy by reasonably taking the volumetric stiffness into consideration. The model is validated by a carefully designed experiment. The influence of the volumetric stiffness on the isolation performance of the isolator is investigated by the validated model. The results indicate that the volumetric stiffness of the isolator and its location in a mathematical model have a significant influence on the isolation frequency and the second natural frequency of the isolator. The dependence of the volumetric stiffness on the isolation frequency, the attenuation capacity at the isolation frequency, and the bandgap of the isolator is presented. The investigation will enhance the understanding of the hydraulic leveraged dynamic anti-resonance vibration isolator, and facilitate the design and exploitation of this type of isolator in the field of vibration isolation.

Linearized Squeeze-Film Dynamics: Model Structure and the Interpretation of Experimentally Derived Parameters

1990 ◽  
Vol 204 (4) ◽  
pp. 263-272 ◽  
Author(s):  
C R Burrows ◽  
N C Kucuk ◽  
M N Sahinkaya ◽  
R Stanway
Keyword(s):  
Experimental Study ◽  
Parameter Estimation ◽  
Squeeze Film ◽  
Model Structure ◽  
Vibration Isolator ◽  
Dynamics Model ◽  
Squeeze Film Dampers

In this paper the authors address the problem of parameter estimation in linearized models of squeeze-film dampers. After demonstrating how the choice of an unsuitable model structure can lead to the misinterpretation of experimentally derived coefficients, a technique is described for assessing the significance of individual inertia, damping and stiffness effects associated with the squeeze-film. An experimental study involving a squeeze-film vibration isolator is described. It is shown how the technique allows the model structure to be simplified in a systematic way.

Experimental study on the control of a novel vibration isolator via adaptive backstepping

2013 ◽  
Vol 21 (7) ◽  
pp. 1321-1339
Author(s):  
Gianmarc Coppola ◽  
Kefu Liu ◽  
Xiaoping Liu ◽  
Dan Zhang
Keyword(s):  
Experimental Study ◽  
Vibration Isolator ◽  
Adaptive Backstepping
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