Influence of key design parameters on the critical speed of eddy current brake

Article type: Research Article

Authors: Yue, Qiming^a | Yang, Panpan^a; | Li, Zixuan^a | Wen, Yongshuang^a | Zhang, Leian^a

Affiliations: [a] School of Mechanical Engineering, Shandong University of Technology, Zibo, Shandong, China

Correspondence: [*] Corresponding author: Panpan Yang, School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, Shandong, China. E-mail: [email protected]

Abstract: The critical speed of eddy current braking is a vital parameter in the design of eddy current braking devices. Currently, most simulations and experiments are used to determine the critical speed, which means a lot of time costs. This paper presents two laws of critical speed variation to help designers more quickly determine the critical speed of a particular eddy current braking device. At first, the structure and the critical speed principle of permanent magnet rotary eddy current brake (PMRECB) are described. Secondly, the finite element analysis is used to verify the accuracy of the two laws. Finally, the validity of the finite element model is confirmed by the eddy current braking test.

Keywords: Permanent magnet rotary eddy current brake (PMRECB), conductor plate conductivity, PMRECB size, critical speed, finite element analysis

DOI: 10.3233/JAE-230292

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 75, no. 4, pp. 497-508, 2024