Model validation and controller design for vibration suppression of flexible rotor using AMB View Full Text


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Article Info

DATE

2002-12

AUTHORS

Soo Jeon, Hyeong-Joon Ahn, Dong-Chul Han

ABSTRACT

This paper discusses the model validation and vibration suppression of an AMB flexible rotor via additional LQG controller. The main difficulty in the vibration suppression of the flexible rotor using AMB is to realize a controller that can minimize resonance without injuring the stabilized rigid modes. In order to solve this problem, simple scheme for system modeling and controller design are developed. Firstly, the AMB flexible rotor is stabilized with a PID controller, which leads to a new stable rotor-bearing system. Then, authors propose the model validation procedure using measured open-loop frequency responses to obtain an accurate model of the AMB flexible rotor system. After that, LQG controller with modal weighting is designed to suppress resonances of the stable rotor-bearing system. Due to the poor controllability and observability of flexible modes compared to rigid ones, balancing of two Gramians is prerequisite for the fair LQG controller design. Simulation with step disturbance and experimental results of unbalance response up to 10,000 rpm verified the effectiveness of the proposed scheme. More... »

PAGES

1583-1593

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf03021660

DOI

http://dx.doi.org/10.1007/bf03021660

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1041846016


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