Hybrid algorithm for seismic energy-dissipated structures based on optimal placement of dampers

To improve the computational efficiency and performance of the existing algorithms of arrangement optimization of dampers in energy dissipation structures，a hybrid algorithm of differential evolution and artificial electric field was proposed. This algorithm utilizes Tent chaotic mapping initialization to improve the quality and diversity of population distribution，and introduces a mutation cross selection mechanism to maintain the evolution of dominant individuals in the population and avoid approaching local optimum. Through a test function example and an arrangement optimization example of dampers of concrete frame structure，the optimization performance and convergence speed of various optimization algorithms were compared. The research results indicate that the hybrid algorithm of differential evolution and artificial electric field has good global optimization ability，fast convergence speed，and the optimized structure has good seismic damping performance. © 2024 Editorial Board of Jilin University. All rights reserved.