Results 141 to 150 of about 354 (182)
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THE DESIGN OF EDDY-CURRENT MAGNET BRAKES
Transactions of the Canadian Society for Mechanical Engineering, 2011The eddy-current is created by the relative motion between a magnet and a metal (or alloy) conductor. The current induces the reverse magnetic field and results in the deceleration of motion. The proposed mechanism implements this phenomenon in developing a braking system.
Der-Ming Ma, Jaw-Kuen Shiau
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Characteristics of Eddy Current Braking
ASME 2010 Rail Transportation Division Fall Technical Conference, 2010Eddy current braking has long held the promise of frictionless braking of railroad trains. The advantages of eliminating friction brake equipment are particularly valuable to high speed rail passenger service. Tests over the last decade have identified a number of controllable challenges to implementing eddy current brakes involving the vehicle, track,
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A laboratory activity on the eddy current brake
European Journal of Physics, 2012The aim of this paper is to introduce a simple and low-cost experimental setup that can be used to study the eddy current brake, which considers the motion of a sliding magnet on an inclined conducting plane in terms of basic physical principles. We present a set of quantitative experiments performed to study the influence of the geometrical and ...
J A Molina-Bolívar, A J Abella-Palacios
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Modeling and control of an eddy current brake
Control Engineering Practice, 1996The purpose of this paper is the application of some existing techniques for the modelling and regulation of an eddy current brake process. An approximate theoretical model is derived for the behavior of an eddy current disc brake in the low-speed zone.
Simeu, Emmanuel, Georges, D.
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An Antilock-Braking Algorithm for an Eddy-Current-Based Brake-By-Wire System
IEEE Transactions on Vehicular Technology, 2007This paper presents a nonlinear sliding-mode-type controller for slip regulation in a braking event for an electromagnetic brake-by-wire (BBW)-system-equipped automobile. The electromagnetic BBW system under consideration consists of a set of eddy current brakes (ECBs) attached to the automobile wheels.
Sohel Anwar, Bing Zheng
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The study on the measuring method of the eddy current on the eddy current brake
9th International Conference on Electrical Machines and Drives, 1999It is important to analyse the characteristic of the flux density and eddy current on the inner part of the electric machine in order to raise the efficiency of the machine. In general, characteristics of the machines are investigated using the numerical analysis.
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Measuring method of the magnetic field on an eddy current brake
IEEE Transactions on Magnetics, 1999It is important to analyze the characteristics of magnetic flux and eddy current on the inner part of an electric machine in order to raise the efficiency of the machine. In general, characteristics of those are investigated using numerical analysis. In this study, we present a novel measuring method of eddy currents on the surface of the sheet iron ...
Y. Um +4 more
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Analysis of eddy-current brakes for high speed railway
IEEE Transactions on Magnetics, 1998The analysis of eddy-current brakes for a high-speed railway is described that shows the operational characteristics of the brake as function of the train speed up to 300 km/hr and of the DC magnetizing current of magnetic poles. Braking forces are generated by employing a DC excitation field for the poles moving 7 mm above the rails.
null Pei-Jen Wang +1 more
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An Alternative Approach for Calculation of Braking Force of an Eddy-Current Brake
IEEE Transactions on Magnetics, 2009We have analyzed an eddy-current brake (ECB), using calculations based on the Fourier transform method. Here, we compare our results with test results and numerical results of the finite-element code ANSYS 11.0. We use our model to study the influence of certain design parameters on the torque-speed characteristics.
R. K. Srivastava, S. Kumar
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Investigation on Eddy Current Braking Systems – A Review
Applied Mechanics and Materials, 2014The changing magnetic field will induce eddy currents in the conductor. These currents will dissipate energy in the conductor and generate drag force. It is found that Aluminium is the best material as conductor compared to Copper and Zinc. Also, it is found that the larger thickness of disc, more number of turns of electromagnet and higher electrical ...
G.L. Anantha Krishna, K.M. Sathish Kumar
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