<abstract xmlns="http://www.w3.org/1999/xhtml"><p> 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.</p></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.

Optimal Response-Related Weighting Matrices to Control Semi-Active Base Isolation Systems

Slovak Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

In this paper, the performance of a semi-active base isolation system, including a magneto-rheological (MR) damper and base isolation system for different...

Optimal Response-Related Weighting Matrices to Control Semi-Active Base Isolation Systems

Published Online: Jul 01, 2017

Page range: 24 - 32

DOI: https://doi.org/10.1515/sjce-2017-0009

Keywords
Semi-active base isolation system, H2/LQG control algorithm, Response-related weighting matrix, Force-related weighting parameter

© Faculty of Civil Engineering, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Optimal Response-Related Weighting Matrices to Control Semi-Active Base Isolation Systems

Published Online: Jul 01, 2017

Page range: 24 - 32

DOI: https://doi.org/10.1515/sjce-2017-0009

KeywordsSemi-active base isolation system, H2/LQG control algorithm, Response-related weighting matrix, Force-related weighting parameter

© Faculty of Civil Engineering, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Semi-active base isolation system, H2/LQG control algorithm, Response-related weighting matrix, Force-related weighting parameter