scholarly journals Semi-active control design for base isolated structures with switching damping coefficient of oil dampers

2013 ◽  
Author(s):  
A. Fukukita ◽  
M. Takahashi
Keyword(s):  
Active Control ◽  
Control Design ◽  
Damping Coefficient ◽  
Isolated Structures

Semi-Active Control of Civil Structures With a One-Step-Ahead Prediction of the Seismic Response

2009 ◽  
Author(s):  
Kazuhiko Hiramoto ◽  
Taichi Matsuoka ◽  
Katsuaki Sunakoda ◽  
Akira Fukukita ◽  
Issei Yamazaki
Keyword(s):  
Seismic Response ◽  
Active Control ◽  
Passive Control ◽  
Inertial Force ◽  
Damping Coefficient ◽  
Superior Performance ◽  
Damping Force ◽  
Civil Structures ◽  
One Step ◽  
Command Signal

We propose a semi-active control of civil structures based on a one-step-ahead prediction of the seismic response. The vibration control device (VCD), which has been developed by authors, generates two types of resistance forces, i.e., a damping force proportional to the relative velocity and an inertial force proportional to the relative acceleration between two stories. The damping coefficient of the VCD can be changed with a command signal to an electric circuit connected to the VCD. In the present paper the command signal for changing the damping coefficient of each VCD is assumed to take two values, i.e., the command to take the maximum or minimum damping coefficient. The optimal command signal is selected from all candidates of command signals so that the Euclidean norm of the one-step-ahead predicted seismic response is minimized. As an example a semi-active control of a fifteen-story building with three VCDs is considered. The simulation results show that the proposed semi-active control achieves superior performance on vibration suppression compared with a passive control case where the damping coefficient of each VCD is fixed at its maximum value.

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
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