Rigid rotor dynamic model is widely used to model rotating machinery. In this paper, a speed-varying transient rigid rotor model is developed in the state space form. The states of this model are augmented to include imbalance forces and moments. A time-varying observer can then be designed for the augmented system by using canonical transformation. After obtaining an estimation of the imbalance forces and moments as the states of the augmented system, the estimated imbalance can be directly calculated. This estimation method can be used in the active vibration control or active balancing schemes for a rigid rotor.
Imbalance Estimation for Speed-Varying Rigid Rotors Using Time-Varying Observer
Contributed by the Dynamic Systems and Control Division for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the Dynamic Systems and Control Division December 12, 1999. Associate Editor: S. Fassois.
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Zhou, S., and Shi, J. (December 12, 1999). "Imbalance Estimation for Speed-Varying Rigid Rotors Using Time-Varying Observer ." ASME. J. Dyn. Sys., Meas., Control. December 2001; 123(4): 637–644. https://doi.org/10.1115/1.1409935
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