Results 151 to 160 of about 354 (182)

Eddy current brake with two pole pairs

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2009
PurposeThe purpose of this paper is to derive a force‐velocity characteristic for an eddy current brake with minor computational effort.Design/methodology/approachThe speed range is split into two domains. While in the low‐speed domain it is possible to achieve a closed form expression for the force‐velocity characteristic in the high‐speed region ...
Eckhard Baum, Stefan Eberhardt
openaire   +1 more source

An analytical dynamic model of eddy-current brakes

IEMDC 2001. IEEE International Electric Machines and Drives Conference (Cat. No.01EX485), 2002
This paper examines eddy-current brakes. Our aim is to model the brake and estimate its braking power. We focused on a static model, in which the flux density distribution on the eddy current surface was calculated using finite element methods. Next, we derived a dynamic model whose eddy currents were computed by means of an analytical expression.
A. Lesobre, A.H.B. Ahmedl, D. Drecq
openaire   +1 more source

Eddy Current Brake Control for Test Cycles Simulation

Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components, 2003
On-vehicle (rolls dynamometer or road) tests are usually more expensive and time-consuming than test bench ones. Furthermore, sometimes results would be useful during vehicles design phase. The paper aim is to present a methodology that allows simulating the vehicle on an engine test cell, by properly controlling the bench actuators.
openaire   +2 more sources

Analysis of eddy-current brakes with nonmagnetic rotors

Proceedings of the Institution of Electrical Engineers, 1977
The field distribution when a thin conducting sheet moves with constant velocity between two rectangular and infinitely permeable pole pieces of an electromagnet is obtained by conformal mapping, after reduction of the problem to two dimensions. This result is used in predicting the force/speed and flux/speed characteristics of eddy-current brakes with
K. Venkataratnam, D. Ramachandra Raju
openaire   +1 more source

Finite element models of eddy current brakes

Proceedings of CEM 2002 - 4th International Conference on Computation in Electromagnetics, 2002
Permanent magnet eddy current brakes offer an economic method for bringing a moving object to rest. The performance of a decelerating eddy current brake can be modelled by a time transient finite element scheme. However, this may be time consuming, especially in the early stages of design. It is shown here how an adequate simulation is possible using a
openaire   +1 more source

General theory of eddy-current couplings and brakes

Proceedings of the Institution of Electrical Engineers, 1966
The general steady-state theory of eddy-current coupling is extended and new material included. The differences in operation between salient-pole and inductor-type eddy-current couplings are shown and the limitations of inductor couplings emphasised. The peak torque of the inductor coupling is shown to be roughly half that of the Lundell machine and to
openaire   +1 more source

The effect of test track wheel radius on the evaluation of linear eddy current braking performance of high-speed maglev train

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2023
Jia Hu, Chunjun Chen, Dongwei Wang
exaly  

Study on Braking Characteristics of a Novel Eddy Current-Hydraulic Hybrid Retarder for Heavy-Duty Vehicles

IEEE Transactions on Energy Conversion, 2020
Jinshan Tian, Lezhi Ye
exaly  

Eddy current brakes (in german)

Wear, 1971
openaire   +1 more source

The eddy current brake for testing motors

Journal of the Institution of Electrical Engineers, 1905
D.K. Morris, G.A. Lister
openaire   +1 more source