Modeling and optimization of tubular linear permanent magnet eddy current brake with Halbach array
| Autor: | Yumeng Fan, Jiahao Li, Guolai Yang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science 020209 energy Mechanical Engineering Mechanical engineering 02 engineering and technology Eddy current brake Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Halbach array Mechanics of Materials Magnet 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering |
| Zdroj: | International Journal of Applied Electromagnetics and Mechanics. 66:91-113 |
| ISSN: | 1875-8800 1383-5416 |
| Popis: | This paper provides an analytical method for calculating the electromagnetic field of the tubular linear permanent magnet eddy current brake. The method of separating variables based on Fourier series is used to solve the boundary value problem, and the analytical solution of electromagnetic field is obtained. The braking force is obtained by calculating the Lorentz force. Then the accuracy of the analytical method is verified by comparing the analytical solutions with the solutions obtained by finite element method (FEM). In order to improve braking performance in a limited space, the parameter analysis is carried out to investigate the influence of various structural parameters on the braking characteristics. According to the results of parameter analysis, the range of design parameters is determined. Finally, a multi-objective optimization is applied to find the optimal design parameters of the eddy current brake. The braking force increases by 27% and the volume of permanent magnet decreases by 7.7% after optimization. |
| Databáze: | OpenAIRE |
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