Abstract
While a solid plate is usually adopted to the reaction plate of the linear induction motor (LIM), slits are often introduced to the plate in order to obtain the higher thrust force by enforcing eddy currents effectively. In this paper, we investigate the slit effect to find a suitable configuration of slits by the three-dimensional finite element analysis with A-φ method, and we propose a face-elements procedure with double nodes for φ at the slit to express its infinitesimal width. We also adopt a current-sheet expression, which consists of three regions for primary winding MMF, that is given by diamond coils. Based on above approaches, we evaluate the slit effect in the LIM, and compare it with the experimental data to conform the validity of the methods, resulting follows; (1) Number of slit per slot-pitch is required more than 4 for obtaining sufficient performances. (2) Preferable slit length is a little bit longer than the stator width. (3) A belt of no slit region in the middle part of the reaction plate is proposed from the structural point of view. However, its width should be less than 40% of the stator width to enforce eddy currents effectively.
| Original language | English |
|---|---|
| Pages (from-to) | 1122-1129 |
| Number of pages | 8 |
| Journal | IEEJ Transactions on Industry Applications |
| Volume | 114 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1994 |
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ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering
Cite this
Three-dimensional finite element analysis of slitted reaction plate in linear induction motor. / Onuki, Takashi; Kamiya, Yushi; Jeon, Woojin.
In: IEEJ Transactions on Industry Applications, Vol. 114, No. 11, 1994, p. 1122-1129.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Three-dimensional finite element analysis of slitted reaction plate in linear induction motor
AU - Onuki, Takashi
AU - Kamiya, Yushi
AU - Jeon, Woojin
PY - 1994
Y1 - 1994
N2 - While a solid plate is usually adopted to the reaction plate of the linear induction motor (LIM), slits are often introduced to the plate in order to obtain the higher thrust force by enforcing eddy currents effectively. In this paper, we investigate the slit effect to find a suitable configuration of slits by the three-dimensional finite element analysis with A-φ method, and we propose a face-elements procedure with double nodes for φ at the slit to express its infinitesimal width. We also adopt a current-sheet expression, which consists of three regions for primary winding MMF, that is given by diamond coils. Based on above approaches, we evaluate the slit effect in the LIM, and compare it with the experimental data to conform the validity of the methods, resulting follows; (1) Number of slit per slot-pitch is required more than 4 for obtaining sufficient performances. (2) Preferable slit length is a little bit longer than the stator width. (3) A belt of no slit region in the middle part of the reaction plate is proposed from the structural point of view. However, its width should be less than 40% of the stator width to enforce eddy currents effectively.
AB - While a solid plate is usually adopted to the reaction plate of the linear induction motor (LIM), slits are often introduced to the plate in order to obtain the higher thrust force by enforcing eddy currents effectively. In this paper, we investigate the slit effect to find a suitable configuration of slits by the three-dimensional finite element analysis with A-φ method, and we propose a face-elements procedure with double nodes for φ at the slit to express its infinitesimal width. We also adopt a current-sheet expression, which consists of three regions for primary winding MMF, that is given by diamond coils. Based on above approaches, we evaluate the slit effect in the LIM, and compare it with the experimental data to conform the validity of the methods, resulting follows; (1) Number of slit per slot-pitch is required more than 4 for obtaining sufficient performances. (2) Preferable slit length is a little bit longer than the stator width. (3) A belt of no slit region in the middle part of the reaction plate is proposed from the structural point of view. However, its width should be less than 40% of the stator width to enforce eddy currents effectively.
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UR - http://www.scopus.com/inward/citedby.url?scp=85007746548&partnerID=8YFLogxK
U2 - 10.1541/ieejias.114.1122
DO - 10.1541/ieejias.114.1122
M3 - Article
AN - SCOPUS:85007746548
VL - 114
SP - 1122
EP - 1129
JO - IEEJ Transactions on Industry Applications
JF - IEEJ Transactions on Industry Applications
SN - 0913-6339
IS - 11
ER -