Study on Chaotification Method in Nonlinear Vibration Isolation System
The NVIS (nonlinear vibration isolation system) works in a chaotic state when its parameters are in chaotic range. Under single frequency harmonic excitation, the system exhibits chaotic behaviour with broad band frequency. This idea can be used to control the line spectra water-born noise of the underwater vehicle, and improve its capability of concealment. In order to ensure that the system works in the chaotic state effectively, a new chaos anti-control method is presented in this paper.Firstly,the NVIS model with feedback is provided, and because the autonomous system corresponding to the hardening stiffness Duffing system has no homo-clinic,hetero-clinic trajectory, there exists no chaos in the sense of the Smale horseshoe.Secondly,The periodic-doubling bifurcation characteristic of the system is analyzed to explore the chaotic parameter range. Simulation results show that the system has multiple dynamical behaviors with different controlling parameters.
Shuyong Liu Shijian Zhu Xiang Yu
Naval University of Engineering Institute of Noise Vibration Wuhan, China 430033
国际会议
南宁
英文
2007-07-20（万方平台首次上网日期，不代表论文的发表时间）