Optimal Response-Related Weighting Matrices to Control Semi-Active Base Isolation Systems
| Autor: | Dadkhah Hamed, Noruzvand Mahsa |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Slovak Journal of Civil Engineering, Vol 25, Iss 2, Pp 24-32 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1338-3973 2017-0009 |
| DOI: | 10.1515/sjce-2017-0009 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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