Effects of model predictive algorithm parameters on vibration control of structures with MR damper

Articles in Press

Authors

1 Civil Engineering Department Faculty of Engineering University of Mohaghegh Ardabili

2 Civil Engineering Department, Faculty of Engineering, University of Mohaghegh Ardabili

3 Phd student of Structural Engineering, Civil Eng. Dept., Faculty of Eng., University of Mohaghegh Ardabili, Ardabil, Iran

10.22034/ceej.2025.64029.2387

Abstract

The simultaneous effect of the prediction horizon (Np) and control horizon (Nc) parameters on the efficiency of MPC controller for the structure equipped with MR damper has been studied in this research. The modeled structures are two three- and five-story shear frames equipped with MR dampers that have been subjected to earthquake excitation. In the control process, in order to check the effect of the parameters, first the states and control force weight matrices have been adjusted and then the combined effect of the Np and Nc has been investigated. The MPC algorithm has been successful in reducing the structural response compared to the uncontrolled state. By initially adjusting the weights and keeping them constant in the process of studying the effect of the Np and Nc, it was observed that the selection of the Np value is about 10 times the number of dofs of the structure (with about ±10 tolerance) and the Nc is approximately Equal to the Nc (with about ±10 tolerance) has a better performance in terms of achieving the control goals, and choosing higher values does not have better effect on improving the control performance and only increases the amount of MPC calculations.

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Journal of Civil and Environmental Engineering

Articles in Press, Accepted Manuscript
Available Online from 27 May 2025

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