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Design of a decoupled PID controller via MOCS for seismic control of smart structures
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  • Journal title : Earthquakes and Structures
  • Volume 10, Issue 5,  2016, pp.1067-1087
  • Publisher : Techno-Press
  • DOI : 10.12989/eas.2016.10.5.1067
 Title & Authors
Design of a decoupled PID controller via MOCS for seismic control of smart structures
Etedali, Sadegh; Tavakoli, Saeed; Sohrabi, Mohammad Reza;
 Abstract
In this paper, a decoupled proportional-integral-derivative (PID) control approach for seismic control of smart structures is presented. First, the state space equation of a structure is transformed into modal coordinates and parameters of the modal PID control are separately designed in a reduced modal space. Then, the feedback gain matrix of the controller is obtained based on the contribution of modal responses to the structural responses. The performance of the controller is investigated to adjust control force of piezoelectric friction dampers (PFDs) in a benchmark base isolated building. In order to tune the modal feedback gain of the controller, a suitable trade-off among the conflicting objectives, i.e., the reduction of maximum modal base displacement and the maximum modal floor acceleration of the smart base isolated structure, as well as the maximum modal control force, is created using a multi-objective cuckoo search (MOCS) algorithm. In terms of reduction of maximum base displacement and story acceleration, numerical simulations show that the proposed method performs better than other reported controllers in the literature. Moreover, simulation results show that the PFDs are able to efficiently dissipate the input excitation energy and reduce the damage energy of the structure. Overall, the proposed control strategy provides a simple strategy to tune the control forces and reduces the number of sensors of the control system to the number of controlled stories.
 Keywords
seismic control;smart base isolated structures;piezoelectric friction dampers;multi-objective cuckoo search;PID controller;
 Language
English
 Cited by
1.
A new modified independent modal space control approach toward control of seismic-excited structures, Bulletin of Earthquake Engineering, 2017, 15, 10, 4215  crossref(new windwow)
2.
Adaptive fractional order fuzzy proportional–integral–derivative control of smart base-isolated structures equipped with magnetorheological dampers, Journal of Intelligent Material Systems and Structures, 2017, 1045389X1772104  crossref(new windwow)
3.
A GBMO-based PI λ D μ controller for vibration mitigation of seismic-excited structures, Automation in Construction, 2018, 87, 1  crossref(new windwow)
4.
PD/PID Controller Design for Seismic Control of High-Rise Buildings Using Multi-Objective Optimization: A Comparative Study with LQR Controller, Journal of Earthquake and Tsunami, 2017, 11, 03, 1750009  crossref(new windwow)
5.
A hybrid LQR-PID control design for seismic control of buildings equipped with ATMD, Frontiers of Structural and Civil Engineering, 2017  crossref(new windwow)
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