Small-scale magnetorheological dampers for vibration mitigation ...

Small-scale technical data
Introduction
Hysteretic models
Identification methodology
Future work
Experimental identification
Summary
Technical data of the small-scale MR friction
controllable damper
LORD Corp.
Stroke = 58 mm, Weight = 0.48 Kg, Input
current = 0.5 A (continuous) and = 1 A
(intermittent), Resistance (ambient temp.)
= 20Ω
Operating temperature = 70 C
Damper forces (peak-to-peak) = 100 N (5
cm/sec @ 1 A) and = 2 N (20 cm/sec @ 0 A)
Disadvantage → do not apply more than 0.5 A
for longer than 30 sec at a time, or heat buildup
may melt the plastic shaft.
Wonder Box → device to control the MR
damper. Power supply = 12 V DC and 2 A DC,
the PC voltage signal is from 0 to 5 V DC, and
the output current is from 0 to 2 A DC.
Return
Arturo Rodríguez Tsouroukdissian
Small-scale MR dampers for vibration mitigation