Multi‐objective optimisation design of a suspension‐guided permanent magnet synchronous linear motor for ropeless elevator

In this article, a suspension-guided permanent magnet synchronous linear motor (SG-PMSLM) for ropeless elevator is proposed, which can meet the requirements of high thrust and density elevator, reduce vibration noise wheel-rail wear during operation. The structure, working principle electromagnetic characteristics SG-PMSLM are analysed. order to improve overall performance SG-PMSLM, article aims at improving average density, reducing fluctuation SG-PMSLM. Firstly, sensitivity analysis key structural parameters conducted, that have significant influence on three optimisation objectives selected as variables. Secondly, response surface model built, Particle Swarm Optimisation algorithm combined conduct multi-objective design Thirdly, optimised solution set obtained objectives. Finite Element Analysis used verify has better diversity effectively compared with initial design. Finally, verified by experiments.