|Table of Contents|

Non-parametric Model for Magneto-rheological Damper


Research Field:
Publishing date:


Non-parametric Model for Magneto-rheological Damper
HOU Bao-lin~1WANG Jiong~1F.D.Goncalves~2
1.School of Mechanical Engineering,NUST,Nanjing 210094;2.Department ofMechanical Engineering,Virginia Tech,Blacksburg,VA24061,USA
magneto-rheological damper non-parametric model Bingham model
Based on the basic idea of Bingham plastic model, a non-parametric model of magneto-rheological (MR) damper is proposed. ThisMR damper model assumes that the damping force of the MR damper consists of three parts: gas chamber force, viscous damping force of MR fluid, and damping force duo to the applied magnetic f ield. The gas chamber force is expressed as a function of the piston displacement. The damping force due to magnet ic field presents a hysteresis loop without linear increase. Sigmoid function is chosen to describe this hysteresis behavior. Its peak value is also a function of the applied current. The comparison of theoretical and experimental results shows that this non-parametric model reflects the dynamic behavior of the usedMR damper reasonably. The parameters in this non-parametric model have clear physical meanings, and they are easily determined through experimental data as well. The proposed non-parametric model is used to describe some MR dampers that have good linearity.


[ 1] Wereley N M, Li Pang . Nondimensional analysis of semiactive electrorheological and magnetorheological dampers using approximate parallel plate models [ J ] . Smart Mater Struct, 1998, 7 ( 5) : 732- 743.
[ 2] Lindler J E, Choi Young-Tai, Wereley N M. Double shock absorbers utilizing electro- and magneto- rheological fluids [ J] . J of Vehicle Design, 2003, 31( 2) : 187- 205.
[ 3] Spencer B F, Dyke S J, Sain M K, et al. Phenomenological model of a magnetorheological damper [ J] . The ASME Journal of Engineering Mechanics, 1997, 123 ( 5) : 230- 238.
[ 4] Lam A H, Liao W H. Sem-i active control of automotive suspension systems [ J] . Int J of Vehicle Design, 2003, 31 ( 1) : 54- 60.
[ 5] Song Xubin. Design of adaptive vibration control system with application of magneto- rheological dampers [ D] . Blacksburg: Virginia Polytechnic Institute and State University, 1999. 89- 103.
[ 6] Choi S B,Han Y M. MR seat suspension for vibration control of a commercial vehicle[ J] . Int J of Vehicle Design, 2003, 31 ( 2) : 202- 215.


Last Update: 2013-05-29