Semi-active vibration absorber based on real-time controlled MR damper

2014 ◽  
Vol 46 (2) ◽  
pp. 272-288 ◽  
Author(s):  
F. Weber
Keyword(s):  
Real Time ◽  
Mr Damper ◽  
Vibration Absorber ◽  
Active Vibration

scholarly journals Development of Antiresonance Enforced Active Vibration Absorber System

1996 ◽  
Vol 39 (3) ◽  
pp. 464-469 ◽  
Author(s):  
Masashi Yasuda ◽  
Rongrong Gu ◽  
Osamu Nishihara ◽  
Hiroshi Matsuhisa ◽  
Kunio Ukai ◽  
...  
Keyword(s):  
Vibration Absorber ◽  
Active Vibration

On Adaptive-Passive Vibration Suppression Using Distributed-Parameter Absorbers

2000 ◽  
Author(s):  
Nader Jalili
Keyword(s):  
Vibration Suppression ◽  
Excitation Frequency ◽  
Wide Band ◽  
Distributed Parameter ◽  
Vibration Absorber ◽  
Frequency Bandwidth ◽  
Lumped Mass ◽  
Adaptive Capability ◽  
Active Vibration ◽  
Tuning Strategy

Abstract A semi-active vibration absorber with adaptive capability is presented to improve wide band vibration suppression characteristics of harmonically excited structures. The absorber subsection consists of a double-ended cantilever beam carrying an intermediate lumped mass. The adaptive capability is achieved through concurrent adjustment of the position of the moving mass, along the beam, to comply with the desired optimal performance. If such an absorber is attached to a vibrating body, it effectively absorbs vibrations at all frequencies that belong to the absorber frequency bandwidth. Numerical simulations are provided to verify the effectiveness of the proposed absorption scheme. It is shown that the tuning strategy tries to follow and match the absorber natural frequency with the excitation frequency. The optimally tuned absorber provides considerable vibration suppression improvement over the passive and de-tuned absorbers, for wide band excitation disturbances.

Response Control Performance Evaluation of MR Damper by Shaking Table Tests and Real-Time Hybrid Tests

2008 ◽  
Vol 56 ◽  
pp. 212-217 ◽  
Author(s):  
Hideo Fujitani ◽  
Hiroaki Sakae ◽  
Mai Ito ◽  
Takeshi Hiwatashi
Keyword(s):  
Real Time ◽  
Sliding Mode ◽  
Structural Response ◽  
Mr Damper ◽  
Shaking Table ◽  
Magnetorheological Damper ◽  
Control Force ◽  
Building Structures ◽  
Shaking Table Tests ◽  
Hybrid Test

Magnetorheological damper (MR damper) has been expected to control the response of civil and building structures in recent years, because of its large force capacity and variable force characteristics. In this paper, a series of real-time hybrid test was conducted and the results of real time hybrid tests were compared to those of shaking table tests. To determine the control force of the MR damper, skyhook control and sliding mode control theory were employed. As the results, the validity of real-time hybrid test was verified. This paper describes the capability of MR damper to control the structural response.

Semi-active Vibration Control with non-linear model of MR Damper

2004 ◽  
Vol 2004.6 (0) ◽  
pp. 261-262
Author(s):  
Takashi TAKAHSI ◽  
Shinya Soma ◽  
Toru WATANABE ◽  
Kazuto SETO
Keyword(s):  
Vibration Control ◽  
Linear Model ◽  
Active Vibration Control ◽  
Mr Damper ◽  
Non Linear ◽  
Active Vibration
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