Open Access
Quasi-modal vibration control by means of active control bearings
K. Nonami,D. P. Fleming +1 more
TLDR
The study provides a new quasi-modal control method for a control system design of an active control bearing system in which feedback coefficients are determined on the basis of a modal analysis.Abstract:
This paper investigates a design method of an active control bearing system with only velocity feedback. The study provides a new quasi-modal control method for a control system design of an active control bearing system in which feedback coefficients are determined on the basis of a modal analysis. Although the number of sensors and actuators is small, this quasi-modal control method produces a control effect close to an ideal modal control.read more
Citations
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Dissertation
Vibration analysis and intelligent control of flexible rotor systems using smart materials
TL;DR: In this paper, the axial force terms included in the equations of motion provided a means for axially directed harmonic force to be introduced into the system and a comprehensive mathematical model incorporating translational and rotational inertia, bending stiffness and gyroscopic moment is developed.
Journal ArticleDOI
Electromagnetic bearing actuator for active vibration control of a flexible rotor
TL;DR: In this paper, a detailed description of the electromagnetic actuator for active vibration control of a flexible rotor bearing system is presented. The transfer characteristics of the electromagnetic actuator are described.
Mechatronics in Rotating Machinery
TL;DR: In a recent survey as mentioned in this paper, the authors discuss the recent progress in researches on mechatronics in rotating machinery and present some of the most successful cases, such as active magnetic bearing and automatic balancer.
Dissertation
Investigation on the control of supercritical centrifugal compressors supported by active magnetic bearings : Toward a new control strategy?
TL;DR: In this article, the authors investigate the dynamic behavior of supercritical centrifugal compressors in order to propose a new control strategy, where each bearing is considered as one entity by coupling its two axes of action, and fuzzy logic modulates the action forces as a function of the global dynamic behaviour.
References
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Journal ArticleDOI
Investigation of an Electromagnetic Damper for Vibration Control of a Transmission Shaft
TL;DR: In this paper, a feasibility study of an electromagnetic damper for vibration control with specific reference to a simulation of a marine propulsion system with turbine shaft, flexible power transmission shaft and primary pinion shaft is presented.
Journal ArticleDOI
Active Vibration Control of a Flexible Rotor on Flexibly-Mounted Journal Bearings
Roger Stanway,C. R. Burrows +1 more
TL;DR: In this article, a mathematical model of a three-mass flexible rotor symmetrically supported on flexibly mounted journal bearings is presented, and three questions are posed: how many control sources are required, what measurement transducers are required and what information about the system dynamics is required in order to implement active control?
Journal ArticleDOI
Active Control of Vibrations in the Case of Asymmetrical High-Speed Rotors by Using Magnetic Bearings
E. Anton,H. Ulbrich +1 more
Design of electromagnetic bearing for vibration control of flexible transmission shaft
V. Gondhalekar,R. Holmes +1 more
TL;DR: In this paper, an approach to the design of the electromagnets and their amplifiers, and software in a digital control system, to condition the control signals so as to make the magnets appear to be linear and uncoupled.