Title: Vibration control for active seat suspension system based on projective chaos synchronisation

Authors: Guilin Wen; Shengji Yao; Zhiyong Zhang; Hanfeng Yin; Zhong Chen; Huidong Xu; Chuanshuai Ma

Addresses: State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, The Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment, Ministry of Education, Hunan University, Changsha 410082, China; State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing 400039, China. ' Department of Mechanical Engineering, University of New Brunswick, Fredericton, E3B 5A3,Canada. ' College of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha City 410114, China. ' State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, The Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment, Ministry of Education, Hunan University, Changsha 410082, China. ' State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, The Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment, Ministry of Education, Hunan University, Changsha 410082, China. ' State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, The Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment, Ministry of Education, Hunan University, Changsha 410082, China. ' State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, The Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment, Ministry of Education, Hunan University, Changsha 410082, China

Abstract: A control method based on Projective Chaos Synchronisation (PCS) is developed for design of active seat suspension system. The chaotic vibration signals with broadband frequency are used to reduce the Power Spectrum Density (PSD) of the driver's acceleration in the human-body sensitive range. The scaling factor of PCS enables us to proportionally diminish the vibration amplitudes of the driver seat to the degree as we desire. Detailed analyses of this method show that the control method could improve the vibration-isolation performance effectively, and the control force applied to the seat suspension could be constrained to a relatively low level. In addition, the robustness of the control method is addressed.

Keywords: PCS; projective chaos synchronisation; vibration control; vehicle dynamics; active seat suspension; vehicle seating; vehicle design; robust control; power spectrum density; PSD; driver acceleration; driver seat.

DOI: 10.1504/IJVD.2012.045926

International Journal of Vehicle Design, 2012 Vol.58 No.1, pp.1 - 14

Available online: 19 Mar 2012 *

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