Active control of coupled flexural-torsional vibration in a flexible rotor–bearing system using electromagnetic actuator

Das, Apurba; Dutt, J.K.; Ray, K.

doi:10.1016/j.ijnonlinmec.2011.03.005

Cited by 25 publications

(9 citation statements)

References 9 publications

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“…The active magnetic bearing (AMB) uses a controllable electromagnetic force to suspend the rotor and can be used for the active control of the rotor vibration. [4][5][6][7][8] The AMB is only installed as a rotor active control device that provides electromagnetic force stiffness and damping, not as a static load support, commonly referred to as an active magnetic actuator (AMA). 3 Compared with other active control devices, an AMA has the advantages of no contact, no lubrication, low energy consumption, and so on.…”

Section: Introductionmentioning

confidence: 99%

Unbalanced Vibration Response Reduction of Rotor Using Active Magnetic Actuator Based on PD Control

Yao¹,

Dai²,

Liu³

2019

The International Journal of Acoustics and Vibration

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An active control method based on the proportional-derivative (PD) feedback control strategy using an active magnetic actuator (AMA) is proposed for suppressing rotor vibration caused by rotor unbalance. The control current of the AMA is adjusted according to the real-time displacement of the rotor through the PD feedback algorithm to produce an electromagnetic force to reach the vibration response reduction of the unbalanced rotor. The motion equation of the rotor-bearing AMA system is established and transformed into a state equation for designing a control strategy based on the PD feedback. Finally, the test rig is set up and the verifications of simulation and experiment are carried out. The simulation and experimental results show the effectiveness of the proposed method for the suppression of the rotor unbalance vibration.

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Section: Introductionmentioning

confidence: 99%

Unbalanced Vibration Response Reduction of Rotor Using Active Magnetic Actuator Based on PD Control

Yao¹,

Dai²,

Liu³

2019

The International Journal of Acoustics and Vibration

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“…Das et al. 22 used electromagnetic actuator to control the coupled flexural-torsional vibration in a flexible rotor-bearing system. Roy et al.…”

Section: Introductionmentioning

confidence: 99%

“…7 A variety of controllers for EMBs have been proposed. [8][9][10][11][12][13][14][15] EMBs are mainly used in high-speed centrifugation, 16 flywheel energy storage system 17,18 and turbomachinery, 19,20 etc. For vibration control of rotor-bearing systems, EMBs are commonly used.…”

Section: Introductionmentioning

confidence: 99%

“…Amer et al 21 investigated the dynamic behavior of a simple rigid disk-rotor supported by active magnetic bearings. Das et al 22 used electromagnetic actuator to control the coupled flexural-torsional vibration in a flexible rotor-bearing system. Roy et al 23 studied the influence of the viscoelastic control law on the dynamic behavior of a rigid rotor-shaft system with active magnetic bearings.…”

Section: Introductionmentioning

confidence: 99%

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Lateral vibration control of a shafting-hull coupled system with electromagnetic bearings

Qin

Zheng

Qin

et al. 2018

Journal of Low Frequency Noise, Vibration and Active Control

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In order to suppress lateral vibration transmission and reduce acoustic radiation of a shafting-hull coupled system, a new approach using electromagnetic bearings in the shafting system is proposed. The dynamic characteristics of the electromagnetic bearings, especially the equivalent stiffness and damping as well as the applicable scope of linearization of the electromagnetic bearings, are analysed at first. With the equivalent parameters, a dynamic model of the shaftinghull coupled system is established subsequently by using the frequency response synthesis method to derive frequency response functions associated with the lateral vibrations. Finally, the influence of the control parameters of the electromagnetic bearings on vibration transmission in the shafting-hull system is studied. Analysis results indicate that lateral vibration responses are suppressed significantly when electromagnetic bearings are introduced into the shafting-hull system, and as a result, sound radiation of the system is reduced, which demonstrates that the proposed approach is effective in controlling vibration transmission in the shafting system.

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“…(2010) used an electromagnetic actuator to control the vibrations of an imbalanced rotor subject to base excitation. They also studied the control of coupled flexural-torsional vibration using an electromagnetic actuator (Das et al., 2011). Das and Dutt (2012) proposed a reduced model for a rotor system based on the system equivalent reduction and expansion process approach in order to implement active vibration control on the system by an electromagnetic actuator.…”

Section: Introductionmentioning

confidence: 99%

Optimal vibration control of rotors with an open edge crack using an electromagnetic actuator

Ebrahimi

Heydari

Behzad

2016

Journal of Vibration and Control

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Vibration control, especially in cracked rotors, is an important factor that can prevent the occurrence of disastrous failures. In this paper, vibrational control of a cracked rotor with an electromagnetic actuator has been studied with a continuous model of flexural vibration of cracked rotors. The governing equation of motion for the rotor under the external excitation of the electromagnetic actuator, gravity, and unbalanced forces is presented. A control law for the optimal control method to minimize the vibration of the rotor or stress at the crack section was obtained. To this aim, two cost functions have been introduced, based on the overall vibration of the rotor and the maximum stress at the crack section. The results of these two strategies are compared with each other and their performances are discussed.

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Active control of coupled flexural-torsional vibration in a flexible rotor–bearing system using electromagnetic actuator

Cited by 25 publications

References 9 publications

Unbalanced Vibration Response Reduction of Rotor Using Active Magnetic Actuator Based on PD Control

Unbalanced Vibration Response Reduction of Rotor Using Active Magnetic Actuator Based on PD Control

Lateral vibration control of a shafting-hull coupled system with electromagnetic bearings

Optimal vibration control of rotors with an open edge crack using an electromagnetic actuator

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