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http://dx.doi.org/10.7735/ksmte.2015.24.3.348

Characteristic Study of a Magnet Gear Speed Reducer with a Unified Harmonic Modulator  

Lee, Sang Jun (Graduate School of Mechanical Engineering, Korea National University of Transportation)
Jung, Kwang Suk (Department of Mechanical Engineering, Korea National University of Transportation)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.24, no.3, 2015 , pp. 348-354 More about this Journal
Abstract
Using a magnetic gear, the speed and torque of the driving axis can be decreased and increased, respectively, similar to a mechanical speed reducer. In particular, because the driving side can be isolated mechanically from the load side, the magnetic gear was developed for application with environmental constraints. Of the existing topologies used for the magnet gear, the filtering method of a specified magnetic component is the most competitive. In this paper, a novel unified harmonic modulator is applied to filter the specified component. The torque conversion method using this modulator is described in detail, and the key factors of the modulator are derived from the influence on the resulting torque. The experimental setup was constructed and its torque transmission efficiency measured for varying loads. The transient characteristic from an excessive load is compared with the theoretical simulation.
Keywords
Harmonic modulator; Harmonic analysis; Magnet gear; Noncontact torque transmission; Sensitivity analysis; Speed reducer;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Jian, L, Xu, G., Gong, Y., Song, J., Liang, J., Chang, M., 2011, Electromagnetic Design and Analysis of a Novel Magnetic-gearintegrated Wind Power Generator using Time-stepping Finite Element Method, Progress in Electromagnetics Research, 113 351-367.
2 Frank, N., 2012, Analysis of the Concentric Planetary Magnetic Gear, A Thesis for a Doctorate, Texas A&M University, USA.
3 Rasmussen, P., Andersen, T., Jorgensen, F., Nielsen, O., 2005, Development of a High-performance Magnetic Gear, IEEE Trans. on Industry Applications, 41:3 764-770.   DOI   ScienceOn
4 Nagraial, M., 1996, Performance of Magnetic Couplings using Nd-Fe-B Magnets, Proc. of IEEE IECON(Industrial Electronics, Control, and Instrumentation) Conf., 2 997-998.
5 Muruganandam, G., Jayakumar, K., 2012, A Novel Perpendicular Magnetic Gear with High Gear Ratio, European J. of Scientific Research, 69:4 593-598.
6 Kikuchi, S., Tsurumoto, K., 1993, Design and Characteristics of a New Magnetic Worm Gear using Permanent Magnet, IEEE Trans. on Magnetics, 29:6 2930-2935.
7 Yao, Y., Huang, D., Lin, S., Wang, S., 1996, Theoretical Computations of the Magnetic Coupling between Magnetic Gears, IEEE Trans. on Magnetics, 32:3 710-713.   DOI   ScienceOn
8 Qu, R., Li, D., Wang, J., 2011, Relationship between Magnetic Gears, and Vernier Machines, Proc. of Electrical Machines and Systems (ICEMS) International Conf., 1-6.
9 Toba, A., Lipo, T. A., 2000, Generic Torque-maximizing Design Methodology of Surface Permanent-magnet Vernier Machine, IEEE Trans. on Industry Application, 36:6 1539-1546.   DOI   ScienceOn
10 Atallah, K., Howe, D., 2001, A Novel High-performance Magnetic Gear, IEEE Trans. on Magnetics, 37:4 2844-2846.   DOI   ScienceOn
11 Jian, L., Chau, K., 2010, Design and Analysis Of A Magnetic-geared Electronic-continuously Variable Transmission System using Finite Element Method, Progress in Electromagnetics Research, 107 47-61.
12 Kim, M. S., Jung, K. S., 2014, Magnet Gear with Two-axial Magnetic Paths, J. Korean Soc. Precis. Eng., 31:6 543-550.   DOI   ScienceOn