Affiliation:
1. Faculty of Engineering, Department of Civil Engineering, University of Mohaghegh Ardabili, Ardabil , Iran
Abstract
Abstract
In this paper, the performance of a semi-active base isolation system, including a magneto-rheological (MR) damper and base isolation system for different combinations of response-related weighting matrices, has been studied. To consider all possible sets of response-related matrices, seven H2/linear quadratic Gaussian (LQG) control designs have been considered. For a numerical simulation, a six-story shear frame has been subjected to different earthquakes, and the performance of the control system has been evaluated. The results show that the optimal force-related weighting parameter is identical for different sets of response-related weighting matrices and is also independent of earthquake records when minimizing the maximum base drift is considered as the design objective. Also, the results of different sets of response-related weighting matrices show that the optimal sets for the design objective of minimizing the maximum base drift are the velocity and displacement/velocity-related weighting matrices.
Reference26 articles.
1. Ali, S.F. - Ramaswamy, A. (2009) Hybrid structural control using magnetorheological dampers for base isolated structures. Smart Materials and Structures, Vol. 18, No. 5, 055011.
2. Bahar, O. - Banan, M.R. - Mahzoon, M. - Kitagawa, Y. (2003) Instantaneous optimal Wilson-θ control method. Journal of Engineering Mechanics, Vol. 129, No. 11, pp. 1268-1276.
3. Bharti, S.D. - Dumne, S.M. - Shrimali, M.K. (2014) Earthquake response of asymmetric building with MR damper. Earthquake Engineering and Engineering Vibration, Vol. 13, No. 2, pp. 305-316.
4. Cho, S.W. - Jung, H.J. - Lee, I.W. (2005) Smart passive system based on magnetorheological damper. Smart Materials and Structures, Vol. 14, No. 4, pp. 707-714.
5. Constantinou, M.C. - Symans, M.D. - Tsopelas, P. - Taylor, D.P. (1999) Fluid dampers for application of seismic energy dissipation and seismic isolation. Proc., ATC-17-1 Seminar on Seismic Isolation, Passive Energy Dissipation and Active Control, pp. 581-591.
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献