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Shock and Vibration
Volume 2016, Article ID 8087176, 9 pages
Research Article

Chaos Analysis on the Acceleration Control Signals of the Piezoelectric Actuators in the Stewart Platform

1College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
2Institute of New Energy and Energy-Saving & Emission-Reduction Technology, Hunan University, Changsha 410082, China

Received 14 May 2015; Revised 9 September 2015; Accepted 10 September 2015

Academic Editor: Vadim V. Silberschmidt

Copyright © 2016 Jiaqiang E et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In order to solve the nonlinear mechanism in the process of actual control application of six-degree-of-freedom parallel Stewart platform, the chaos theory was applied in the paper to analyze the acceleration control signal. The research included correlation dimension calculation by use of the G-P method, the maximum Lyapunov coefficient of the acceleration control signal, and Kolmogorov entropies of the acceleration control signal. The results show that the acceleration signals are of chaos characteristics, and there are lots of influencing factors to the acceleration variables.