Identification of Parameters of Spencer Model in a Double-Ended Magnetorheological Damper for Different Sizes of Carbonyl Iron Powder for Magnetorheological Fluid

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MOUSAZADEH M.; JAHANI K.; Abdullahe m.

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Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:5 Page(s): 1307-1317

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Title

Identification of Parameters of Spencer Model in a Double-Ended Magnetorheological Damper for Different Sizes of Carbonyl Iron Powder for Magnetorheological Fluid

Author(s)

MOUSAZADEH M. | JAHANI K. | Abdullahe m. | Issue Writer Certificate

Keywords

Magnetorheological FluidQ1

Magnetorheological Double-Ended DamperQ1

Iron Particle SizeQ1

Parameter IdentificationQ2

Spencer Parametric ModelQ1

Abstract

The aim of this paper is identifying the parameters of parametric Spencer model for a doubleended magnetorheological damper with different sizes of iron-carbonyl powders suspended in Magnetorheological Fluid. There is not any published work in literature about identification of parameters of Spencer model for spherical iron particles with different particle diameters in Magnetorheological Fluids. Hence, in present work, at first, two different Magnetorheological Fluids with different diameters of iron particle and same volume percentage are prepared. Then, using a double-ended magnetorheological damper, dynamic displacement tests with harmonic excitation in different frequencies and using different electric currents are conducted. The parametric Spencer model is selected for modeling the damper and identifying its parameters. 10 parameters of this model are identified, using nonlinear least square solver and implementing Sequential Quadratic Programming method for damper, using two different Magnetorheological Fluids in different frequencies and different electric currents. The appropriate polynomials are extracted for identified parameters that have systematic trends with increasing electric current. With generating theoretical and experimental hysteresis curves in different electric currents, excitation frequencies and different fluids, it is tried to assess the capability of Spencer model in regenerating the experimental counterparts. The comparisons of the hysteresis curves obtained from Spencer model with identified parameters by the experimentally achieved counterparts show that this model has adequate compatibility with experiments in predicting force-velocity hysteresis curves. However, the implemented model has not enough success in predicting the force-displacement hysteresis curves, especially in sharp ends of the curves and force delaying regions.

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APA: Copy

MOUSAZADEH, M., JAHANI, K., & Abdullahe, m.. (2019). Identification of Parameters of Spencer Model in a Double-Ended Magnetorheological Damper for Different Sizes of Carbonyl Iron Powder for Magnetorheological Fluid. MODARES MECHANICAL ENGINEERING, 19(5 ), 1307-1317. SID. https://sid.ir/paper/178050/en

Vancouver: Copy

MOUSAZADEH M., JAHANI K., Abdullahe m.. Identification of Parameters of Spencer Model in a Double-Ended Magnetorheological Damper for Different Sizes of Carbonyl Iron Powder for Magnetorheological Fluid. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(5 ):1307-1317. Available from: https://sid.ir/paper/178050/en

IEEE: Copy

M. MOUSAZADEH, K. JAHANI, and m. Abdullahe, “Identification of Parameters of Spencer Model in a Double-Ended Magnetorheological Damper for Different Sizes of Carbonyl Iron Powder for Magnetorheological Fluid,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 5 , pp. 1307–1317, 2019, [Online]. Available: https://sid.ir/paper/178050/en

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