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Design of Magneto-Rheological Clutch Coil Operation Unit using Electro Magnetic Field Analysis  

Song, Jun-Han (Department of Mechanical Engineering, Sunmoon University)
Choi, Dook-Hwan (Department of Mechanical Engineering, Sunmoon University)
Chun, Chong-Keun (Department of Mechanical Engineering, Sunmoon University)
Kwon, Young-Chul (Department of Mechanical Engineering, Sunmoon University)
Lee, Tae-Haeng (Division of Materials Engineering, Kongju National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.17, no.3, 2009 , pp. 22-28 More about this Journal
Abstract
Recently, there has been an active study about smart fluid to control the vibration, in which MR fluid is evaluated as most efficient because it can generate different bonding forces based on the intensity of the external magnetic fields. This paper attempts to find a mechanism that, under limited conditions during a clutch production that uses such dynamic characteristic, defects the maximum intensity of electromagnetism. Using the finite element analysis program, we predicted a change within the bonding force of the MR fluid occurring inside the clutch when it is subjected to an increased electric current. In addition, we analyzed the change in the magnetic intensity when the coil comprising the coil control center is switched to multiple lines from the standard single line, to find a mechanism that can maximize the effect. Based on this analysis, we developed the clutch and tested its function, hoping to widen future MR fluid's range of application.
Keywords
Magneto-rheological fluid; Clutch; Coil operation unit; Electro magnetic field analysis; Magnetic flux density;
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