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A behavior model of a magnetorheological fluid in direct shear mode
Authors:Kyung-In JangByung-Kwon Min  Jongwon Seok
Institution:a School of Mechanical Engineering, Yonsei University, Seoul 120-749, Republic of Korea
b School of Mechanical Engineering, Chung-Ang University, Seoul 156-756, Republic of Korea
Abstract:A model that considers the mutual interaction between particles and the external field in a magnetorheological (MR) fluid is proposed. The model predicts the magnetization, interaction energy density, and shear stress against an imposed strain along the planar direction under a uniform magnetic field. Using the Lekner summation method, slowly convergent magnetization functions are transformed into rapidly convergent ones. By applying the proposed model to an application suitable for commercial clutches and dampers working in direct shear mode, it is revealed that the mean magnetization vector and the associated functional quantities of the MR fluid behave harmonically with respect to the imposed shear strain.
Keywords:Magnetorheological fluid  Direct shear mode  Magnetic interaction energy  Mutual dipole interaction  Lekner summation method
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