Abstract
This paper proposes a new design method for sleeve thickness and interference based on a multi-dimensional visualization algorithm that overcomes difficulties in solving. The contact pressure between the rotor core and the permanent magnet, the maximum equivalent Mises stress of the permanent magnet, and the maximum equivalent Mises stress of the sleeve are selected as the optimization objectives. The stress limit strength of the permanent magnet and sleeve are taken as constraints, and the sleeve thickness and interference are selected as decision variables. Then the multi-dimensional visualization algorithm is used to find the optimal region of sleeve thickness and interference. Finally, the design solution is validated by the finite element method. The results show that the design method proposed in this paper can obtain the optimal region of sleeve thickness and interference with the characteristics of a simple solution process and intuitive results.
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Abbreviations
- σ r :
-
Radial stress at the radius r
- σ θ :
-
Hoop stress at the radius r
- E θ :
-
Hoop elastic modulus
- μ rθ :
-
Radial poisson’s coefficient
- μ θr :
-
Hoop poisson’s coefficient
- u r :
-
Radial displacement at radius r
- ρ :
-
Component density
- ω :
-
Rotor angular velocity
- E r :
-
Radial elastic modulus
- σ rs :
-
Radial stress and hoop stress of the sleeve at radius r
- σ rm :
-
Radial stress and hoop stress of the permanent magnet at radius r
- u rr :
-
Radial displacement of the rotor core at radius r
- σ max Misesm :
-
Maximum equivalent stress of the permanent magnet
- σ max mpressure :
-
Ultimate compressive strength of the permanent magnet
- σ max Misess :
-
Maximum equivalent stress of the sleeve
- σ max spull :
-
Ultimate tensile strength of the sleeve
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Acknowledgements
This work is supported by the National Natural Science Foundation of China under grants 12062014 and 51967015, the Natural Science Foundation of Jiangxi Province under grant 20202BABL204048, China.
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Zhiyi Tu is a master’s degree candidate. His research interests include the design and visualization of optimization algorithms of high-speed permanent-magnet motors.
Liangliang Chen is a Ph.D. in electrical engineering from Zhejiang University, China. He is a teacher in the College of Information Engineering, Nanchang Hangkong University. His research interests include the design and control of highspeed permanent-magnet machines and high-speed flywheel energy-storage systems.
Qiong Li is a Ph.D. in electrical engineering from Huazhong University of Science and Technology, China. She is a teacher in the College of Information Engineering, Nanchang Hangkong University. Her research interests include permanent-magnet servo-motor control and industrial robot-arm research and development.
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Tu, Z., Chen, L., Li, Q. et al. Optimal design of a rotor sleeve for a surface-mounted high-speed permanent-magnet motor with a multi-dimensional visualization strategy. J Mech Sci Technol 36, 5885–5894 (2022). https://doi.org/10.1007/s12206-022-1106-6
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DOI: https://doi.org/10.1007/s12206-022-1106-6