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Electromagnetic braking for Mars spacecraft
22nd Joint Propulsion Conference, 1986Aerobraking concepts are being studied to improve performance and cost effectiveness of propulsion systems for Mars landers and Mars interplanetary spacecraft. Access to megawatt power levels (nuclear power coupled to high-storage inductive or capacitive devices) on a manned Mars interplanetary spacecraft may make feasible electromagnetic braking and ...
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Electromagnetic brake with controllable torque
Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry, 1961MANY LARGE materials handling machines and processing machines require smooth, accurate stopping. In the past, accurate stopping has usually been accomplished by the use of hydraulic brakes. Recently, an electromagnetic brake has been developed to perform the same functions and to overcome some disadvantages of hydraulic brakes, such as the need for ...
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Design considerations of electromagnetic brakes for servo applications
2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014Abstract Servo motors have increased popularity in industrial and robotics applications. Also, servo motors employ electromagnetic brakes for holding and emergency braking. So, electromechanical brakes found numerous fields due to operation and emergency requirements.
Yasa, Yusuf +3 more
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Optimal Control of Electromagnetic Brake Retarders
SAE Technical Paper Series, 1994<div class="htmlview paragraph">An electromagnetic brake retarder is a device for assisting the brakes of heavy vehicles during descents down long steep inclines. As it operates, a brake retarder heats up and this causes its performance to deteriorate.
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Electromagnetic-Thermal Modeling of Electromagnetic Brake Using Finite-Element Analysis
Applied Mechanics and Materials, 2013A DC-excited high torque electromagnetic brake has been designed for high-speed train in WHMFC. An electromagnetic-thermal analysis model for electromagnetic brake analysis has been developed, taking into account the specific heat capacity-temperature relation, nonlinear magnetization-saturation and the skin effect.
Bo Zhang +6 more
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Finite element analysis of an electromagnetic brake
IEEE Transactions on Magnetics, 1983The paper presents an analysis of the distribution of the magnetic flux in an eddy current braking device. The analysis is based on a non linear finite element computation of the magnetic field combined with an analytical or numerical evaluation of the eddy distribution in the conducting slab.
J. Bigeon, J. Sabonnadiere, J. Coulomb
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Hybrid Electromagnetic Brakes: Design and Performance Evaluation
IEEE Transactions on Energy Conversion, 2015Eddy current brakes having advantages such as contactless operation offer an alternative to conventional friction-based brakes. The flux source in an eddy current brake can be produced by permanent magnets or electrically excited windings. The former eliminates the need for an external supply, whereas the latter provides good control capability for the
Reza Yazdanpanah, Mojtaba Mirsalim
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A torque-controllable electromagnetic multiple-disc brake
Tribology International, 1989Abstract This paper describes a new type of electromagnetic multiple-disc brake for controlling braking torque. The brake consists of a rare-earth permanent magnet, an electromagnet and multiple friction discs. The friction torque is controlled by the electric current in a coil of the electromagnet.
K. Nagaya, M. Nakata, Y. Masuo, S. Ikai
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Diagnostics of Electromagnetic Friction Brakes and Clutches
2019 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), 2019This paper proposes and theorizes upon a new method for diagnosing movable-armature electromagnetic mechanisms (EM), which is based on an additional high-frequency electric-field effect on the EM magnetic core; the field excites corresponding high-frequency electrodynamic processes that are not related to the EM operating parameters and do not affect ...
Igor V. Bochkarev +3 more
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Design Optimization of Frction Disc-Based Electromagnetic Brakes for Higher Braking Torque
2018 21st International Conference on Electrical Machines and Systems (ICEMS), 2018This paper proposes an optimization scheme for friction disc-based electromagnetic (EM) brakes, which can achieve higher braking torque at constant volume by maximizing the magnetic circuit utilization. Firstly, the magnetic equivalent circuit is calculated, then the initial dimensions are designed for the EM brakes according to the torque requirement.
Bowen Chen +3 more
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