Active control schemes for aseismic base-isolated structures

2002 ◽  
Vol 72 (2-3) ◽  
pp. 147-159 ◽  
Author(s):  
A. G. Soldatos ◽  
K. G. Arvanitis ◽  
E. C. Zacharenakis
Keyword(s):  
Active Control ◽  
Control Schemes ◽  
Isolated Structures

Robust active control of hysteretic base-isolated structures: Application to the benchmark smart base-isolated building

2008 ◽  
Vol 15 (5) ◽  
pp. 720-736 ◽  
Author(s):  
Francesc Pozo ◽  
Pere Marc Montserrat ◽  
José Rodellar ◽  
Leonardo Acho
Keyword(s):  
Active Control ◽  
Isolated Structures

scholarly journals Displacement control of isolated structures with semi-active control devices

2003 ◽  
Vol 10 (2) ◽  
pp. 77-100 ◽  
Author(s):  
Chin-Hsiung Loh ◽  
L. Y. Wu ◽  
P. Y. Lin
Keyword(s):  
Active Control ◽  
Displacement Control ◽  
Control Devices ◽  
Isolated Structures

Active Control Schemes to Satisfy Separation Distance Constraints

2007 ◽  
Vol 30 (4) ◽  
pp. 1152-1156 ◽  
Author(s):  
Pedro A. Capó-Lugo ◽  
Peter M. Bainum
Keyword(s):  
Active Control ◽  
Separation Distance ◽  
Distance Constraints ◽  
Control Schemes

Experimental Dynamic Analysis of Magneto-Rheological Tuned Vibration Absorbers

2003 ◽  
Author(s):  
Jeong-Hoi Koo ◽  
Mehdi Ahmadian ◽  
Mehdi Setareh ◽  
Thomas M. Murray
Keyword(s):  
Active Control ◽  
Primary Structure ◽  
Control Policy ◽  
Vibration Absorbers ◽  
Control Policies ◽  
Output Displacement ◽  
Tuned Vibration Absorbers ◽  
Control Schemes ◽  
Displacement Based ◽  
Magneto Rheological

The primary purpose of this study is to experimentally evaluate the dynamics of a Magneto-Rheological Tuned Vibration Absorber (MR TVA) with several semi-active control schemes. A test rig was built to represent a two-degree of freedom primary structure model coupled with an MR TVA, and four semi-active control policies were considered. The four control policies include: velocity-based, on-off groundhook control (on-off VBG); velocity-based, continuous groundhook control (continuous VBG); displacement-based, on-off groundhook control (on-off DBG); and displacement-based, continuous groundhook control (continuous DBG). Using the test apparatus, a series of tests were conducted to investigate the dynamics of the MR TVA with each control policy. The performances of each of the cases were then analyzed along with the equivalent passive TVA. The performance index was the transmissibility between the input and the output displacement of the structure. The experimental results indicated that the MR TVA with all of the semi-active control policies, outperformed the passive TVA in reducing structural vibrations. Furthermore, the displacement-based groundhook control policies perform better in reducing the resonant vibrations of the primary structure than the velocity-based groundhook control schemes.

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