The harmonic steady-state responses of an MR seat isolator, designed and fabricated at the University of Maryland
for the driver/commander seat of the Expeditionary Fighting Vehicle (EFV), are measured over a temperature
range from 100°C to 1000°C, and the damper behavior is characterized using a variant of the nonlinear
Bingham plastic model. The effect of damper self-heating on the model parameters is investigated and the trends
with temperature variation are presented. Numerical simulations are carried out to investigate seat isolation performance
across a broad frequency spectrum as temperature and payload vary. Conclusions are drawn about the
performance robustness to temperature variations of the semi-active skyhook control algorithm typically utilized
in vibration isolation problems.