Supervisory Adaptive Balancing of Rigid Rotors during Acceleration
نویسندگان
چکیده
This paper investigates active real-time balancing of rigid rotors during the transient time of acceleration. First, the governing equation of motion of a rigid rotor is formulated. A parametric adaptive control scheme is then designed based on this dynamic model. An ordinary recursive least squares estimation method is used to estimate parameters in this adaptive control scheme. A supervisory control strategy is proposed to coordinate the parameter estimation and the balancer control action. Simulation results show that the whole scheme can efficiently reduce the imbalance-induced vibration in the rigid rotor-bearing system.
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Rotating machinery, including machining spindles, industrial turbomachinery, and aircraft gas turbine engines, are very commonly used in industry. One major problem faced by these machineries is the harmful, imbalance-induced vibration. Many methods have been developed to reduce this vibration: o!-line balancing methods [1], on-line active balancing methods using mass redistribution devices [2}...
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