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IJAT Vol.12 No.5 pp. 669-677
doi: 10.20965/ijat.2018.p0669
(2018)

Paper:

Highly Dynamic Spindle Integrated Magnet Actuators for Chatter Reduction

Jan Königsberg*, Jan Reiners**,†, Bernd Ponick*, Berend Denkena**, and Benjamin Bergmann**

*Institute for Drive Systems and Power Electronics (IAL), Leibniz Universität Hannover
Welfengarten 1, 30167 Hannover, Germany

Corresponding author

**Institute of Production Engineering and Machine Tools (IFW), Leibniz Universität Hannover, Garbsen, Germany

Received:
January 23, 2018
Accepted:
April 18, 2018
Published:
September 5, 2018
Keywords:
active damping, spindle, chatter reduction
Abstract

This paper presents a novel approach for active chatter reduction using a motor spindle with integrated magnet actuators. Based on the results of previous studies the design of an active damped prototype is described. The system performance as well as the benefits and drawbacks of this solution are discussed. In order to eliminate the known drawbacks a novel actuator design is introduced. The novel approach integrates the actuator windings into the stator core. Next, strategies for electric and magnetic decoupling of the actuator and motor windings are presented. Subsequently the actuator design is discussed. The force generation and distribution of the damping actuator are calculated via analytical and finite elements analysis (FEA). With the novel approach the mechanical integration of the active damping actuators is simplified significantly. Additionally, the maximal attainable spindle power is increased up to 150% in relation to the previous solution.

Cite this article as:
J. Königsberg, J. Reiners, B. Ponick, B. Denkena, and B. Bergmann, “Highly Dynamic Spindle Integrated Magnet Actuators for Chatter Reduction,” Int. J. Automation Technol., Vol.12, No.5, pp. 669-677, 2018.
Data files:
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Last updated on Oct. 23, 2018