Dual-Objective Optimization of Performance of High-Speed Shift Electromagnet Based on Response Surface and NSGA-II  
Author Jihong Pang

 

Co-Author(s) Kaiyu Yuan; Yong Li

 

Abstract Aiming at the problems of uneven shifting and slow working response time of high-speed shifting electromagnet, an optimization method is proposed to improve the initial electromagnetic force and reduce the response time of high-speed shifting electromagnet based on JMAG finite element calculation, response surface and NSGA-II. Firstly, the equivalent magnetic circuit analysis method is used to determine the parameters that affect the reliability of high-speed shifting electromagnet. Secondly, the finite element simulation model of parameterized electromagnetic field of JMAG and SolidWorks is established, and the significance of the influencing factors is analyzed by orthogonal test. Then, a second-order polynomial response surface model is constructed based on Box-Behnken response surface method. Next, a two-objective optimization model for the performance of high-speed shifting electromagnet based on NSGA-II is established in Matlab-Platemo toolbox to obtain the global optimal Pareto solution set. The study results show that the maximum initial electromagnetic force increases by 20.71N and the response time decreases by 6.63MS. According to the optimization results, the approved dual-objective optimization model can effectively improve the initial electromagnetic force and reduce the response time of high-speed shifting electromagnet, and can effectively reduce the optimization complexity and calculation time.

 

Keywords Objective optimization; High-speed shift electromagnet; Orthogonal experiment; Response face; NSGA-II
   
    Article #:  RQD27-123
 

Proceedings of 27th ISSAT International Conference on Reliability & Quality in Design
Virtual Event

August 4-6, 2022