A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Vibration control assessment of ASCE benchmark model of cable‐stayed bridge
10.1002/stc.62.abs
This paper presents the performance assessment of the semi‐active control on the ASCE benchmark model of a cable‐stayed bridge using MR dampers. In order to develop the semi‐active control algorithm unique features of the MR damper were generated which considered the intrinsic nonlinear behavior of the damper. The modified nonlinear hysteretic bi‐viscous model with three slopes in the force/velocity loop and two yield force values were proposed. Different control algorithms were selected including H2, H∞ and mix H2 and H∞ control algorithms, sliding mode control in lieu of the LQG formulation, and the SMC with fuzzy logic control. The performance of the control algorithm is compared through a numerical study of the ASCE benchmark model of a cable‐stayed bridge. Finally, the control performance among different control algorithm is examined. Through numerical study it is concluded that the mixed H2 and H∞ semi‐active control method is the better control method because it has a good ability to mitigate every evaluated response, and has a robust control gain to generate the appropriate control force. But the passive control system (passive‐on for MR‐damper) for this benchmark problem also provides good control effectiveness. Copyright © 2005 John Wiley & Sons, Ltd.
Vibration control assessment of ASCE benchmark model of cable‐stayed bridge
10.1002/stc.62.abs
This paper presents the performance assessment of the semi‐active control on the ASCE benchmark model of a cable‐stayed bridge using MR dampers. In order to develop the semi‐active control algorithm unique features of the MR damper were generated which considered the intrinsic nonlinear behavior of the damper. The modified nonlinear hysteretic bi‐viscous model with three slopes in the force/velocity loop and two yield force values were proposed. Different control algorithms were selected including H2, H∞ and mix H2 and H∞ control algorithms, sliding mode control in lieu of the LQG formulation, and the SMC with fuzzy logic control. The performance of the control algorithm is compared through a numerical study of the ASCE benchmark model of a cable‐stayed bridge. Finally, the control performance among different control algorithm is examined. Through numerical study it is concluded that the mixed H2 and H∞ semi‐active control method is the better control method because it has a good ability to mitigate every evaluated response, and has a robust control gain to generate the appropriate control force. But the passive control system (passive‐on for MR‐damper) for this benchmark problem also provides good control effectiveness. Copyright © 2005 John Wiley & Sons, Ltd.
Vibration control assessment of ASCE benchmark model of cable‐stayed bridge
Loh, Chin‐Hsiung (author) / Chang, Chia‐Ming (author)
Structural Control and Health Monitoring ; 13 ; 825-848
2006-07-01
24 pages
Article (Journal)
Electronic Resource
English
Vibration control assessment of ASCE benchmark model of cable-stayed bridge
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