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OA-A1: Room C / Analysis and Simulation of Electromagnetic Devices 1
Time:
Monday, 13/Nov/2023:
3:20pm - 4:40pm
Session Chair: Prof. Benjamin Ducharne Session Chair: Prof. Yasushi Kanai
Presentations
3:40pm - 4:00pm ID: 265 / OA-A1: 2 Regular_Abstract (short paper) Submission Topics: Analysis and Simulation of Electromagnetic Devices (ASED) Keywords: 3D-FEM, FRM, Eddy current loss in permanent magnets, cross-pole stator, high-efficiency
A NOVEL FLUX REVERSAL MOTOR WITH CROSS-POLE-SHAPE STATOR
Yue YU
Tohoku University, Japan
Recently, more and more researchers are contributing their efforts to developing electrification to achieve a carbon-neutral society. Besides as an indispensable part of electrification, the development of electric motors plays an important role. Among them, a permanent magnet synchronous motor (PMSM) is applied in most fields due to its high-power density and compactness. However, most permanent magnets are brittle materials that cannot withstand centrifugal force caused by high-speed operation. Besides, the rotor steel rib also suffers from centrifugal force. Those make PMSM a disadvantage in mechanical strength. Therefore, we focus on a simpler structure motor called flux reversal motor (FRM) as a research target and propose a new shape FRM with a cross-pole shape to improve its performance. This paper describes eddy current loss reduction in permanent magnets by the cross-pole shape using a three-dimensional finite element method (3D-FEM).
A MAGNETORHEOLOGICAL ELASTOMERS METASURFACE FOR STEERING FLEXUAL WAVE
Yuanwen GAO, Wei YAN
Lanzhou University, China, People's Republic of
In this paper, a tunable magnetorheological elastomers (MREs) metasurface composed of MREs and three-dimensional (3D) printing material polylactic acid (PLA) is proposed to steer the propagation of incident flexural waves arbitrarily. Based on the Generalized Snell’s Law, MREs metasurfaces with different refraction angles are designed by adjusting the applied magnetic field, including positive refraction and negative refraction. In addition, wave focusing and self-bending beam effects are also investigated. Different focal spots and self-bending beam paths can be realized by adjusting the applied magnetic field. A wave focusing experiment is conducted to verify the simulation results, The simulated and experimental results of the elastic wave focusing effect are in good agreement.
4:20pm - 4:40pm ID: 301 / OA-A1: 4 Regular_Abstract (short paper) Submission Topics: Analysis and Simulation of Electromagnetic Devices (ASED) Keywords: Wave Energy Converter, Energy Harvesting, Finite Element Analysis
NUMERICAL SIMULATION OF WAVE ENERGY CONVERTER BASED ON STOCHASTIC RESONANCE AND VARIABLE MAGNETIZATION
Takahiro SATO
Muroran Institute of Technology, Japan
This paper presents a wave energy converter based on stochastic resonance and its numerical simulation method. Numerical simulations show that the proposed converter has wide operational frequency range thanks to the nonlinearity of the proposed converter. Moreover, it is also shown that the frequency response of the proposed converter can be controlled by the field current to adapt various ocean wave conditions.
