2011•Advanced materials researchRequires access

Design of a Novel Damping-Controllable Damper for Suspension Systems

Yaojung Shiao, Yao Huang

Abstract

Conventional oil dampers are non-controllable passive dampers because the viscosity of the fluid used is not wide-range variable. By using magneto-rheological fluid (MRF), MRF damper has excellent performance for variable-damping applications. Due to the single-coil design in the general MRF damper, the obtained damping from MR effect is not quite large. This research provides a high-damping MRF damper by adopting multi-pole coil and special polarization configuration. The simulated results show that the new MRF damper has good performance in the magnetic field and damping. Compared with a similar-size general single-coil MRF damper, this new MRF damper can get 47% higher performance under the same operating conditions.

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Available abstract

Key concepts: Damper, Electromagnetic coil, Structural engineering, Shock absorber, Suspension (topology), Damping torque, Engineering, Control theory (sociology)