Houria AmamraOthmen BenmekkiOualid Limam2024-06-032024-06-032023-12-11Houria Amamra, Othmen Benmekki, Oualid Limam. Linear quadratic regulator Based Control Algorithm Optimized by Particle Swarm Optimization for Seismically Excited Buildings. International Pluridsciplinary PhD Meeting IPPM 23. Faculty of technology. University of Eloued [visited in ../../…]. Available from[ Copy the link here]https://dspace.univ-eloued.dz/handle/123456789/33071InterventionIn the last decades, a lot of different seismic semi-active control algorithms have been proposed, which are generally based on traditional control applications. In this paper we develop a new control algorithm for multi degree of freedom MDOF structures based in Linear quadratic regulator control optimized by Particle swarm optimization (PSO) algorithm. This algorithm uses LQR’s direct approach for stability analysis in design of feedback controller. The PSO algorithm provides the optimal parameters of Linear quadratic regulator function candidate, which minimize the evaluation criteria function of the states of the system. Numerical simulations using three story frame structure modeled as shear building structure subjected to earthquake excitations have been performed to evaluate the effectiveness of the proposed algorithm.enSeismic semi-active controlmulti degree of freedom MDOFLinear quadratic regulatorstabilityParticle swarm optimization (PSO)OptimizationNumerical simulationIntervention