Insight into Magnetorheological Shock Absorbers

Transient Magnetic Model of Magnetorheological Damper and Its Experimental Verification

“…The response times of published designs of MR dampers are in the range of 20-100 ms [1], [3], [4]. From the existing literature, it can be assumed that the response time of MR damper has three sources [5], [6]: inductance of MR damper coil (response time of exciting current), response time of MR fluid, eddy currents in the coil core (response time of magnetic field in the active zone).…”

“…The MR damper is mechanically simpler than the traditional design of the hydraulic damper because it does not contain mechanical moving parts. For this reason, the MR damper is noise-free [4]. MR dampers are commonly used for adaptive control.…”

Experimental Investigation of an Automotive Magnetorheological Shock Absorber

“…1. The device has a typical configuration of mono-tube flowmode damper with an annular gap (Gołdasz and Sapiński, 2015). Geometrical parameters of the absorber are: piston stroke 178 mm, outer diameter of the cylinder 50 mm, the length with the piston in compression position 381 mm, the length with the piston in rebound position 559 mm.…”

Magnetostatic Analysis of a Pinch Mode Magnetorheological Valve

“…The feature has made the material attractive for use in vibration damping applications in particular. By considering the manner in which the material is operated, MR fluid based devices can be classified into four categories: flow-mode (Gołdasz and Sapiński, 2015, Simms et al, 2001, Yao et al, 2002, shear mode (Wereley et al, 2007), squeeze mode (Boelter andJanocha, 1998, Jolly andCarlson, 1996), pinch mode (Goncalves and Carlson, 2009). Hybrid devices utilize more than one operating mode of MR fluids (Yazid et al, 2014).…”