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Journal of Intelligent Material Systems and Structures
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Semiactive Vibration Control of a Smart Seat with an MR Fluid Damper Considering its Time Delay

Chanho Park

Department of Mechanical Engineering, Sogang University, Sinsudong, Mapoku, Seoul, 121-742, Korea

Doyoung Jeon

Department of Mechanical Engineering, Sogang University, Sinsudong, Mapoku, Seoul, 121-742, Korea

The Lyapunov type robust control is applied to the semiactive vibration control of a controllable seat system to accommodate the modelling uncertainty of system and time delay of the damper. The seat system has a flexible mechanism of a spring and MR fluid damper between a seat cushion and base. Simulation results show that the robust control considering the time delay of the damper suppresses the seat vibration effectively.

Key Words: robust control • MR fluid damper • smart seat

Journal of Intelligent Material Systems and Structures, Vol. 13, No. 7-8, 521-524 (2002)
DOI: 10.1106/104538902030343
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