scholarly journals Magnetorheological Elastomer Stiffness Control for Tunable Vibration Isolator

Author(s):  
Gigih Priyandoko ◽  
Tedi Kurniawan ◽  
Efistein Naga
2021 ◽  
Vol 1908 (1) ◽  
pp. 012020
Author(s):  
G Priyandoko ◽  
P Suwandono ◽  
NR Ismail ◽  
WM Utomo ◽  
Ubaidillah

Author(s):  
Parth Dhrangdhariya ◽  
Sunil Padhiyar ◽  
Prince Mishra

Magnetorheological rubber belongs to the class of ‘Smart Material’ whose mechanical properties can be altered continuously and reversibly by an applied magnetic field. Magnetorheological rubber (MRE’s) are composites that consists of magnetically polarisable particles mixed into rubber matrix. With suitable controlled algorithms, they respond to change in their environment. Purpose of this work is to know more about magnetorheological rubber for active stiffness, vibration control and dampening applications. Although few applications of these materials have been reported in the literature, the possibilities are numerous. They can be used for various applications such as vibration absorber, vibration isolator, variable stiffness bush, spring, force sensors, actuators etc.


2016 ◽  
Vol 28 (6) ◽  
pp. 728-739 ◽  
Author(s):  
Guojiang Liao ◽  
Yangguang Xu ◽  
Fayuan Wei ◽  
Renwei Ge ◽  
Qiang Wan

This article presents a phase-based fuzzy logic controller for magnetorheological elastomer vibration absorber to trace the excitation frequency rapidly. The phase difference between the relative acceleration of the vibration absorber mass and the absolute acceleration of the primary system is used as the input signal of the fuzzy logic controller to calculate the desired magnetic current. Compared with the traditional stiffness control strategy, the proposed controller does not rely on the accurate relationship between the magnetic current and the resonant frequency of the magnetorheological elastomer vibration absorber. Simulation and experiment results demonstrate that the proposed stiffness controller is efficient to make the magnetorheological elastomer vibration absorber trace the excitation frequency rapidly. When the excitation frequency varies, the magnetorheological elastomer vibration absorber can be tuned properly within several seconds.


2017 ◽  
Vol 2017 (0) ◽  
pp. 211
Author(s):  
Naoki IWASA ◽  
Nguyen Xuan Bao ◽  
Toshihiko KOMATSUZAKI ◽  
Yoshio IWATA ◽  
Haruhiko ASANUMA

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