Transient finite element method using edge elements for moving conductor

Conference · Sat May 01 04:00:00 EDT 1999 · IEEE Transactions on Magnetics

OSTI ID:6457490

Tani, Koji; Nishio, Takayuki; Yamada, Takashi ^[1]; Kawase, Yoshihiro ^[2]

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1. Japan Research Inst., Ltd., Osaka (Japan)
2. Gifu Univ. (Japan). Dept. of Information Science

For the next generation of high speed railway systems and automobiles new braking systems are currently under development. These braking systems take into account the eddy currents, which are produced by the movement of the conductor in the magnetic field. For their optimum design, it is necessary to know the distribution of eddy currents in the moving conductor. The finite element method (FEM) is often used to simulate them. Here, transient finite element method using edge elements for moving conductor is presented. Here the magnetic vector potential is interpolated at the upwind position and the time derivative term is discretized by the backward difference method. As a result, the system matrix becomes symmetric and the ICCG method is applicable to solve the matrix. This method is used to solve an eddy current rail brake system. The results demonstrate that this approach is suitable to solve transient problems involving movement.

• OSTI ID: 6457490
• Report Number(s): CONF-9806101--
• Conference Information: Journal Name: IEEE Transactions on Magnetics Journal Volume: 35:3Pt1
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320202* -- Energy Conservation
Consumption
& Utilization-- Transportation-- Railway
33 ADVANCED PROPULSION SYSTEMS
330300 -- Advanced Propulsion Systems-- Electric-Powered Systems
330600 -- Advanced Propulsion Systems-- Vehicle Design Factors
AUTOMOBILES
BRAKES
CALCULATION METHODS
COMPUTER-AIDED DESIGN
CURRENTS
DESIGN
EDDY CURRENTS
ELECTRIC CURRENTS
ELECTRIC RAILWAYS
FINITE ELEMENT METHOD
MACHINE PARTS
MATRICES
NUMERICAL SOLUTION
RAILWAYS
VEHICLES