Adaptive Control of Rubbing Rotor under Flow Induced Force

Abstract:

Along with the increasing of structural parameters of a rotary machine, the flow induced excitation on the rotor will significantly increase. By taking two-control-volume model for sealing force, the nonlinear dynamic equation of rubbing rotor foundation was derived. Then, the problem of controlling the chaotic response of the nonlinear rubbing rotor was studied by the adaptive control theory. Numerical simulations on the rotor system were performed with a multi-parameter adaptive algorithm. The numerical results show that the parametric adaptive control method is effective to suppress a chaotic response once happened into a required steady state periodic response. This control strategy is helpful to rotor system design and maintenance.

• Periodical: Applied Mechanics and Materials (Volumes 365-366)
• Pages: 800-804
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.365-366.800
• Online since: August 2013
• Authors: De Chen Yao, Li Min Jia, Yong Qin, Yun Yun Zhao
• Keywords: Adaptive Control, Chaotic System, Flow Induce, Rubbing Rotor, Simulation

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