ANALYTICAL METHODOLOGY FOR MR FLUID DAMPERS USING BIVISCOUS CONSTITUTIVE MODEL
So far, Bingham constitutive model has been widely used to in the depiction of Magneto-rheological (MR) fluid behaviors, which exhibit discontinuous characteristics in shear stress versus shear rate and have deficiencies in the representation of MR fluids pre-yield behaviors and post-yield behaviors. In this paper, the Biviscous constitutive model is presented to depict rheological behaviors of MR fluids. The quasi-static flow governing equations are theoretically set up by making several rational simplifications. Both flow boundary conditions and flow compatibilities conditions are established. Analytical velocity profiles of MR fluids though plates channels are obtained via solution of the equations using Biviscous constitutive model. The prediction methodology of damping force is formulated and MR dampers are predicated. MR fluid dampers are designed and fabricated in Chongqing University. Measurements from sinusoidal displacement cycle by ShanChuan Shock Absorber Ltd.reveal that the prediction methodology and design theory are reasonable.
Magneto-rheological fluid Damper Biviscous model Bingham model Velocity profiles Damping force
C.R Liao H.H.Zhang M.Yu X.M.Dong W.M.Chen
Center for Intelligent Structures, Chongqing University, Chongqing, 400030, China Key Lab.for Opto-electronic Technology & System under MOE, Chongqing, 400030,China
国际会议
南京
英文
84-90
2006-09-24（万方平台首次上网日期，不代表论文的发表时间）