Academic literature on the topic 'Magnetic clutches'

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Journal articles on the topic "Magnetic clutches"

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Bucchi, Francesco, Paola Forte, and Francesco Frendo. "Geometry optimization of a magnetorheological clutch operated by coils." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 231, no. 1-2 (2016): 100–112. http://dx.doi.org/10.1177/1464420716665650.

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Magnetorheological fluids are smart materials responsive to magnetic field, widely applied in dampers and shock absorbers but also in clutches and brakes. The magnetorheological fluid gap shape is a very important topic in the design of clutches, since it directly influences the transmissible torque and the power loss. In this paper, an approach to magnetorheological fluid clutch design based on optimization is proposed and tested on four different layouts. Starting from a given available volume, two magnetorheological fluid gap shapes, namely single cylinder and multi-disc, and two coils posi
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Krasilnikov, A. Ya, and A. A. Krasilnikov. "Magnetic clutches and magnetic systems in sealed machines." Chemical and Petroleum Engineering 48, no. 5-6 (2012): 306–10. http://dx.doi.org/10.1007/s10556-012-9615-2.

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Krasil’nikov, A. Ya, and A. A. Krasil’nikov. "High-coercivity permanent magnets in magnetic clutches." Chemical and Petroleum Engineering 42, no. 9-10 (2006): 582–85. http://dx.doi.org/10.1007/s10556-006-0146-6.

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Pilon, Raphaël, Alexandre Landry-Blais, Benoit Gillet, Anaële Pin, Jean-Philippe Lucking Bigué, and Jean-Sébastien Plante. "A magnetic screw pump for magnetorheological clutch durability enhancement." Journal of Intelligent Material Systems and Structures 31, no. 7 (2020): 945–55. http://dx.doi.org/10.1177/1045389x20906474.

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Magnetorheological clutches have great potential for demanding applications such as powertrains and aircraft primary flight controls. However, in such high-power applications (>1 kW), durability is a challenge because of the continuous slippage at the clutch shear interface. To improve durability, this research studies the potential of using a magnetic screw pump to promote fluid mixing within a magnetorheological clutch. The screw flights are made of magnetorheological fluid formed by the concentration of the magnetic field lines around helical grooves machined into the shear interface (dr
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Lorimer, W., and A. Hartman. "Magnetization pattern for increased coupling in magnetic clutches." IEEE Transactions on Magnetics 33, no. 5 (1997): 4239–41. http://dx.doi.org/10.1109/20.619722.

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Krasil’nikov, Ya A., and A. A. Krasil’nikov. "Highly coercive permanent magnets in standard magnetic clutches." Russian Engineering Research 29, no. 4 (2009): 342–44. http://dx.doi.org/10.3103/s1068798x09040042.

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Krasil’nikov, A. Ya, and A. A. Krasil’nikov. "Standard Designs of Magnetic Systems and Magnetic Clutches for Hermetic Equipment." Atomic Energy 118, no. 1 (2015): 40–46. http://dx.doi.org/10.1007/s10512-015-9953-1.

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Krasil’nikov, A. Ya, and A. A. Krasil’nikov. "Repulsive forces of highly coercive permanent magnets in magnetic clutches and plane magnetic systems." Russian Engineering Research 33, no. 4 (2013): 194–96. http://dx.doi.org/10.3103/s1068798x13040114.

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Krasilnikov, A. Ya. "Order of Selection and Design of Magnetic Clutches for Sealed Machines." Chemical and Petroleum Engineering 49, no. 7-8 (2013): 467–75. http://dx.doi.org/10.1007/s10556-013-9775-8.

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Krasil’nikov, A. Ya, and A. A. Krasil’nikov. "Attractive forces of highly coercive permanent magnets in end magnetic clutches and plane magnetic systems." Russian Engineering Research 30, no. 6 (2010): 543–46. http://dx.doi.org/10.3103/s1068798x1006002x.

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Dissertations / Theses on the topic "Magnetic clutches"

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Lee, Jeng-Yuan, and 李正源. "Tension Control Analyse and Design of Winding Systems for Roll-to-roll Apparatus with Magnetic Powder Clutches." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/79jfr8.

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碩士<br>崑山科技大學<br>機械工程研究所<br>96<br>Even though there are several types of the system of tensile control, they are no doubt to be used widely on equipment especial for producing many electronic components during the manufacturing progress. Generally speaking, the producing way of the “Roll-to-roll” which it is continuative producing horizontally with automatic rolling devices on equipment. The material will be rolled in the entrance side of the equipment and will be rolled out from the other after manufacturing procedure completely. When those manufacturing progresses were finished, the necessary
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Chi-TingYeh and 葉記廷. "Design, Dynamic Measurement and Control for Contact-less Magnetic Clutch with Adjustable Torque Output." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/48191323693214134245.

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碩士<br>國立成功大學<br>機械工程學系<br>102<br>SUMMARY The major target of this research is to develop a contact-less magnetic clutch with adjustable torque output, in addition to its mathematical model derived accordingly. Secondly, a contactless thin-layered torque sensor with fully-digital signal processing circuit is designed and realized to cooperate the control loop and the magnetic clutch. Lastly, an experimental setup is established to verify the efficacy of the torque control system based on the real-time feedback by the proposed digital torque sensor. Key words: Contact-less Magnetic Clutch, Ad
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Books on the topic "Magnetic clutches"

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Shchetinin, T. A. Ėlektromagnitnye mufty skolʹzhenii͡a︡. Ėnergoatomizdat, 1985.

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Magnetic Bearings, Magnetic Drives, and Dry Gas Seals Conference & Exhibition (1995 Alexandria, Va.). Proceedings of MAG '95: Magnetic Bearings, Magnetic Drives, and Dry Gas Seals Conference & Exhibition : August 10-11, 1995, Radisson Hotel at Mark Center, Alexandria, Virginia. Technomic Pub. Co., 1995.

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MAG '93 (1993 Alexandria, Va.). Proceedings of MAG '93: Magnetic bearings, magnetic drives, and dry gas seals conference & exhibition : July 29-30, 1993, Radisson Hotel at Mark Center, Alexandria, Virginia. Technomic Pub. Co., 1993.

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MAG '92 (1992 Alexandria, Va.). Proceedings of MAG '92: Magnetic bearings, magnetic drives, and dry gas seals conference & exhibition : July 29-31, 1992, Radisson Hotel at Mark Center, Alexandria, Virginia. Technomic Pub. Co., 1992.

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Proceedings of MAG '95: Magnetic Bearings, Magnetic Drives, and Dry Gas Seals Conference & Exhibition : August 10-11, 1995, Radisson Hotel at Mark Center, Alexandria, Virginia. Technomic Pub. Co, 1995.

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Proceedings of MAG '93: Magnetic bearings, magnetic drives, and dry gas seals conference & exhibition : July 29-30, 1993, Radisson Hotel at Mark Center, Alexandria, Virginia. Technomic Pub. Co, 1993.

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Book chapters on the topic "Magnetic clutches"

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Horváth, P., and D. Törőcsik. "Optimal Design of a Magneto-Rheological Clutch." In Mechatronics. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23244-2_11.

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Ran, Jiangtao, Guangzeng Chen, Chenguang Bai, and Yunjiang Lou. "Current Control of Magneto-Rheological Clutch for Robotics Application." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8458-9_9.

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Antipin, D. Ya, V. I. Vorobiev, and M. A. Maslov. "Improving the Construction of Magnetic Clutch Amplifiers of Locomotive Wheels with Rails." In Proceedings of the 4th International Conference on Industrial Engineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95630-5_251.

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Jinaga, Rakesh, Shreedhar Kolekar, and T. Jagadeesha. "Magneto Rheological Fluid Based Smart Automobile Brake and Clutch Systems." In Energy, Environment, and Sustainability. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0434-1_13.

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Tri, Diep Bao, Nguyen Ngoc Diep, Nguyen Xuan Bien, Vu Van Bo, Huynh Minh Huy, and Nguyen Quoc Hung. "Design and Testing of a Novel Magneto-Rheological Clutch with Tooth-Shaped Rotor." In Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020). Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69610-8_115.

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"Magnetic Particle, Hysteresis, and Eddy-Current Brakes and Clutches." In Clutches and Brakes. CRC Press, 2004. http://dx.doi.org/10.1201/9780203026236.ch7.

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Ubaidillah and Bhre Wangsa Lenggana. "Finite Element Magnetic Method for Magnetorheological Based Actuators." In Finite Element Methods and Their Applications [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94223.

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Magnetorheological materials based actuators have been currently exciting research topic for more than half-decades. Some actuators have been developed based on magnetorheological fluids and elastomers such as dampers, brakes, haptic devices, clutches, mountings, etc. These devices have their exciting properties which are capable of changing characteristic based on the amount of magnetic flux applied to them. Due to this capability, they are usually called semi-active devices. These devices employ an electromagnetic coil for magnetic flux production. Therefore, during the design process, magnetostatic simulation using the finite element method magnetic is carried out to make a better magnetic circuit. This chapter will consider several discussions such as necessary magnetostatic using free software finite element method magnetic (FEMM); design consideration for the magnetic circuit of the device and case studies of several type simulation in magnetorheological materials based devices.
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Milanezi de Andrade, Rafhael, André Palmiro Storch, Lucas de Amorim Paulo, Antônio Bento Filho, Claysson Bruno Santos Vimieiro, and Marcos Pinotti. "Transient Thermal Analysis of a Magnetorheological Knee for Prostheses and Exoskeletons during Over-Ground Walking." In Heat Transfer - Design, Experimentation and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95372.

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Proper knee movement is essential for accomplishing the mobility daily tasks such as walking, get up from a chair and going up and down stairs. Although the technological advances in active knee actuators for prostheses and exoskeletons to help impaired people in the last decade, they still present several usage limitations such as overweight or limited mechanical power and torque. To address such limitations, we developed the Active Magnetorheological Knee (AMRK) that comprises a Motor Unit (MU), which is a motor-reducer (EC motor and Harmonic Drive) and a MR clutch, that works in parallel to a magnetorheological (MR) brake. Magnetorheological fluids, employed in the MR clutch and brake, are smart materials that have their rheological properties controlled by an induced magnetic field and have been used for different purposes. With this configuration the actuator can work as a motor, clutch or brake and can perform similar movements than a healthy knee. However, the stability, control, and life of magnetorheological fluids critically depend on the working temperature. By reaching a certain temperature limit, the fluid additives quickly deteriorate, leading to irreversible changes of the MR fluid. In this study, we perform a transient thermal analysis of the AMRK, when it is used for walking over-ground, to access possible fluid degradation and user’s discomfort due overheating. The resulting shear stress in the MR clutch and brake generates heat, increasing the fluid temperature during the operation. However, to avoid overheating, we proposed a mode of operation for over-ground walking aiming to minimize the heat generation on the MR clutch and brake. Other heat sources inside the actuator are the coils, which generate the magnetic fields for the MR fluid, bearings, EC motor and harmonic drive. Results show that the MR fluid of the brake can reach up to 31°C after a 6.0 km walk, so the AMRK can be used for the proposed function without risks of fluid degradation or discomfort for the user.
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CHOI, S. B., S. R. HONG, D. W. PARK, C. C. CHEONG, and Y. K. PARK. "COMPARISON OF FIELD-CONTROLLED CHARACTERISTICS BETWEEN ER AND MR CLUTCHES." In Electro-Rheological Fluids And Magneto-Rheological Suspensions. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812793607_0069.

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ORAVSKÝ, V. "UNIFIED DYNAMIC MODEL OF CONCENTRIC AND RADIAL ELECTRO-RHEOLOGICAL CLUTCHES INCLUDING HEAT TRANSFER." In Electro-Rheological Fluids And Magneto-Rheological Suspensions. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812793607_0096.

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Conference papers on the topic "Magnetic clutches"

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Neelakantan, Vijay A., and Gregory N. Washington. "Effect of Centrifugal Force Effect on Magneto-Rheological Fluid Clutches." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39012.

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The property of magnetorheological fluids to change their yield stress depending on applied magnetic fields can be employed to develop many controllable devices one of them being MR fluid based clutches. One major problem however with MR fluid based clutches is that at high rotational speeds, the iron/ferrous particles in the MR fluid centrifuge due to very high centrifugal forces. Thus the particles move outward as the speed increases thereby making the fluid non-homogeneous. Many times however the initial analysis assumes fluid homogeneity, which is really not the case. In this paper this pr
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Molyet, Kevin, Constantin Ciocanel, Hideki Yamamoto, and Nagi Naganathan. "Design and Performance of a MR Torque Transfer Device." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81428.

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Magnetorheological (MR) fluids possess the unique ability to undergo dramatic and nearly completely reversible changes in their rheological properties under the application of a magnetic field. These controllable fluids can serve as quiet, rapid interfaces between electronic controls and mechanical systems. One area of application is to use these fluids in torque transfer devices, such as clutches and brakes. After determining MR fluid properties and behavior using a rheometer, a parallel disk type MR clutch was successfully developed, which utilized a stationary electromagnetic coil. Finite e
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Güth, Dirk, Markus Schamoni, and Jürgen Maas. "Energy-Efficient MRF-Clutch With Optimized Torque Density." In ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/smasis2013-3153.

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The viscous losses at high rotational speeds in idle mode represent a major drawback for an energy-efficient operation of MRF brakes and clutches. In this paper, an innovative concept is presented that allows a complete torque-free idle mode of the mentioned actuators by the use of a MR-fluid control. Using magnetic forces, the MR-fluid control is capable to increase the efficiency and lifetime of MRF based actuators for torque transmission. An approach of designing actuators using the investigated MR-fluid control is applied which considers in detail the required magnetic excitation systems f
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Perez-Diaz, J. L., E. Diez-Jimenez, C. Cristache, et al. "Magnetic Non-Contact Harmonic Drive." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63718.

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The MAGDRIVE project, granted by the Space program of the EU-FP7, is developing a gear able to produce reduction ratios from 1 to several hundreds by means of magnetic teeth. The teeth, unlike the conventional gears, do not touch one to other. This makes that this gear does not need any kind of lubrication. In case that the maximum torque is passed over the axle simply clutches, but nothing breaks down. Therefore, it has an intrinsic antijamming characteristic. It is also reversible: it can reduce but also multiply the velocity. It can also go clockwise or anticlockwise. Ratio, maximum torque,
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Güth, Dirk, Markus Schamoni, and Jürgen Maas. "Modeling Approach for a Fluid Movement Induced by Magnetic Forces for Viscous Loss Reduction of MRF Brakes and Clutches." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8135.

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A challenge that is opposed to a commercial use of actuators like brakes and clutches based on magnetorheological fluids (MRF), are durable no-load losses, because a complete torque-free separation due to the permanent liquid intervention is inherently not yet possible. In this paper, the necessity of reducing these durable no-load losses will be shown by measurements performed with a MRF brake for high rotational speeds of 6000min−1. The detrimental high viscous torque motivates the introduction of a novel concept that allows a controlled movement of the MRF from an active shear gap into an i
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Kemerli, Muaz, Tahsin Engin, and Zekeriya Parlak. "A New Rheological Model of Magnetorheological Fluids for CFD: Comparison and Validation." In ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-7984.

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Magnetorheological fluid is a special smart fluid which can show different rheological properties under different magnetic flux densities due to its magnetically sensitive structure. This makes the fluid able to be manipulated and semi-actively controlled for various applications such as dampers, clutches and brakes. To provide an effective damping it is necessary to create an appropriate control algorithm. In order to design a structure with magnetorheological fluid and to get an idea for a control approach, the physics of the fluid motion has to be modelled. Computational Fluid Dynamics is a
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Yu, Changmiao, Weihua Wang, Qingnian Wang, and Subhash Rakheja. "Property Analysis of an Electro-Mechanical Regenerative Damper Concept." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47386.

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This study proposes a concept of an electro-mechanical regenerative damper, composed of a gear mechanism and overrunning clutches to achieve uni-directional angular motion of the armature, and asymmetric damping in compression and rebound. An analytical model of the regenerative damper is formulated to derive its force-velocity properties, which revealed predominant inertia damping effect in addition to the electro-magnetic damping. The formulations further revealed that the damping properties of proposed concept could be easily varied through variation in both the electrical circuit and mecha
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Bucchi, Francesco, Mohammad Elahinia, Paola Forte, and Francesco Frendo. "Development and Testing of a Hybrid SMA/MR Passive Clutch." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7496.

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The reduction of consumption and emissions is a key factor in modern vehicle design. The overall vehicle efficiency is pursued in several ways, including the reduction of consumption of the auxiliary devices (e.g. water pumps, oil pumps, vacuum pumps etc.). In this paper, using two different smart materials (i.e. magnetorheological fluids and shape memory alloys) a device aimed at disengaging the vacuum pump was developed. The conceived device is composed of a magnetorheological (MR) clutch excited by permanent magnets coaxially manufactured with a sliding spline sleeve moved by shape memory a
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Yoo, Jae Gu, and Delbert Tesar. "Torque Saturation Analysis in Electromechanical Motor." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60424.

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This paper describes the torque and magnetic flux analysis using an advanced dynamic dynamometer test bed for electromechanical motors. Test motor was tested under different levels of continuous loads and high bandwidth complex duty cycle loads in order to provide data to characterize the nonlinear properties of electric motors. The test bed to obtain torque saturation limit data is comprised of a servo motor which serves as a dynamic load emulator, a brake, a clutch, and full sensor array for comprehensive monitoring of test variables, (including magnetic flux density sensor). The magnetic fl
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Binyet, Emmanuel, and Jen-Yuan Chang. "Magneto-Hydrodynamics Simulation of MRF Activated Clutch-Brake Using Permanent Magnets." In 2018 Asia Pacific Magnetic Recording Conference (APMRC). IEEE, 2018. http://dx.doi.org/10.1109/apmrc.2018.8601109.

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