A solution method of aero-engine model based on the improved hybrid salps swarm algorithm
Aiming at the problems of slow convergence speed and low precision of traditional intelligent optimization algorithm in solving nonlinear equations of aeroengine model,a new salp swarm optimization algorithm(SSA)is proposed.In order to improve the random search ability of the standard SSA to solve complex engine models,SSA is improved by using the chaotic mapping,the sine-cosine algorithm,the adaptive weight,and the dimension-wise mutation strategy.And the algorithm process(Process improved SSA)is further adjusted to increase the algorithm convergence probability.Finally,the Process improved SSA and Newton-Raphson algorithm are combined into a hybrid algorithm,using the fitness value as the judgment condition for algorithm switch to improve the computational efficiency of the hybrid algorithm.After simulation tests,the effectiveness of Process improved SSA in solving the aeroengine model is verified.The simulation results show that the hybrid algorithm can achieve global convergence and improve the convergence speed,and can achieve fast convergence when the model is input with strong transient simulation.