关键词: 类电磁机制算法, 师生交流机制, 约束优化, 工程设计优化

Abstract: In order to solve constrained optimization problems effectively,a Teaching-Learning based Electromagnetism-like Mechanism(TLEM)algorithm was proposed.On the basis of inheriting the good convergence of the EM algorithm,the force calculation process wes simplified,and the moving probability was introduced to modify the movement formula.By combining with the Teaching-Learning Based Optimization(TLBO)algorithm,the local search accuracy was improved actually.The charge calculation formula of EM algorithm was improved,and a feasibility and dominance rule was adopted to deal with the constraints.The TLEM algorithm was compared and analyzed with other popular constrained optimization algorithms on 13 standard test functions.Experimental results showed that TLEM was superior to other algorithms in solving ability and stability.The proposed algorithm was applied to pressure vessel design,compression spring design and welding beam design,which verified the feasibility and superiority of TLEM algorithm in engineering design optimization.

Key words: electromagnetism-like mechanism algorithm, teaching-learning mechanism, constrained optimization, engineering design optimization