Premium
Vibration control assessment of ASCE benchmark model of cable‐stayed bridge
Author(s) -
Loh ChinHsiung,
Chang ChiaMing
Publication year - 2006
Publication title -
structural control and health monitoring
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.587
H-Index - 62
eISSN - 1545-2263
pISSN - 1545-2255
DOI - 10.1002/stc.62
Subject(s) - benchmark (surveying) , engineering , damper , control theory (sociology) , bridge (graph theory) , nonlinear system , vibration control , sliding mode control , structural engineering , control system , vibration , cantilever , control (management) , computer science , artificial intelligence , medicine , physics , electrical engineering , geodesy , quantum mechanics , geography
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 H 2 , H ∞ and mix H 2 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 H 2 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.