scholarly journals SEMI-ACTIVE BASE-ISOLATION SYSTEM BY MR DAMPER UTILIZING OPTIMAL REGULATOR THEORY

2003 ◽  
Vol 68 (567) ◽  
pp. 47-54 ◽  
Author(s):  
Takeshi HIWATASHI ◽  
Yoichi SHIOZAKI ◽  
Hideo FUJITANI ◽  
Satsuya SODA
Keyword(s):  
Base Isolation ◽  
Mr Damper ◽  
Isolation System ◽  
Base Isolation System ◽  
Optimal Regulator ◽  
Active Base

Neuro-fuzzy model of hybrid semi-active base isolation system with FPS bearings and an MR damper

2006 ◽  
Vol 28 (7) ◽  
pp. 947-958 ◽  
Author(s):  
Hyun-Su Kim ◽  
Paul N. Roschke ◽  
Pei-Yang Lin ◽  
Chin-Hsiung Loh
Keyword(s):  
Base Isolation ◽  
Fuzzy Model ◽  
Mr Damper ◽  
Isolation System ◽  
Neuro Fuzzy ◽  
Base Isolation System ◽  
Active Base

Performance of Semi-Active Base Isolation Systems under External Explosion

2017 ◽  
Vol 17 (10) ◽  
pp. 1750112 ◽  
Author(s):  
M. Mohebbi ◽  
H. D. Dadkhah
Keyword(s):  
Base Isolation ◽  
Hybrid Control ◽  
Structural Response ◽  
Mr Damper ◽  
Isolation System ◽  
Base Isolation System ◽  
Isolation Systems ◽  
Hybrid Control System ◽  
Blast Loadings ◽  
Active Base

Structures designed against earthquake loads based on using control systems may experience explosions during their lifetime. In this paper, the performance of a hybrid control system composed of a low-damping base isolation and a supplemental magneto-rheological (MR) damper under external explosion has been studied. Base isolation system has the ability of decreasing the maximum structural response under blast loadings by shifting the period of the structure. In addition, MR damper improves the base isolation system performance by controlling the base drift of the structure. Hence, in this paper, the capability of a hybrid base isolation system equipped with an MR damper at the base has been evaluated in reducing the maximum structural response and base drift under external blast loadings. To determine the voltage of the semi-active MR damper, the H2/Linear Quadratic Gaussian (LQG) and clipped-optimal control algorithms have been applied. For numerical simulations, a 10-storey shear frame subjected to blast loadings applied on different floors has been considered and the performance of the hybrid isolation system and MR damper has been studied. The results have proven the effectiveness of the hybrid control system in controlling the maximum response and base drift of the isolated structure against spherical external explosion. Furthermore, comparing the performance of the hybrid passive and semi-active base isolation systems indicates that the semi-active hybrid base isolation system is more effective in reducing the root-mean-square (RMS) value of the base drift. Similarly, it has been found that the semi-active hybrid base isolation system also performs better than the high-damping base isolation system.

530 Application of Active Base Isolation System Using Absolute Vibration Control Technology

2011 ◽  
Vol 2011 (0) ◽  
pp. _530-1_-_530-10_
Author(s):  
Osamu YOSHIDA ◽  
Mitsuru KAGEYAMA ◽  
Takeshi SANO ◽  
Hideo KATSUMATA ◽  
Fumiaki ENDO ◽  
...  
Keyword(s):  
Vibration Control ◽  
Base Isolation ◽  
Control Technology ◽  
Isolation System ◽  
Base Isolation System ◽  
Active Base

scholarly journals Application of Active Base Isolation System Using Absolute Vibration Control Technology

2012 ◽  
Vol 78 (789) ◽  
pp. 1632-1643 ◽  
Author(s):  
Osamu YOSHIDA ◽  
Mitsuru KAGEYAMA ◽  
Takeshi SANO ◽  
Hideo KATSUMATA ◽  
Fumiaki ENDO ◽  
...  
Keyword(s):  
Vibration Control ◽  
Base Isolation ◽  
Control Technology ◽  
Isolation System ◽  
Base Isolation System ◽  
Active Base

Verification of real-time hybrid tests of response control of base isolation system by MR damper comparing shaking table tests

2008 ◽  
Author(s):  
Hideo Fujitani ◽  
Hiroaki Sakae ◽  
Rui Kawasaki ◽  
Hideki Fujii ◽  
Takeshi Hiwatashi ◽  
...  
Keyword(s):  
Real Time ◽  
Base Isolation ◽  
Mr Damper ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Response Control ◽  
Isolation System ◽  
Base Isolation System
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