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Generalized Predictive Kinetic Energy Controller for Vibration Suppression in Turning
Technical Paper
1999-01-1873
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A Generalized Predictive Kinetic Energy Controller (GPKEC), which has been previously developed, is implemented to control the machine tool vibration in a lathe turning process. The control variable, tool feed, is computed using acceleration feedback through the GPKEC algorithm. The feed is controlled by attaching a high torque/low inertia permanent magnet DC servomotor to the main feed rod through a high performance timing belt. Experiments are carried out for a number of cases. The system identification of the overall machining process is done on-line and precedes the control action. Accelerometers have been used to sense the vibration signal in the feed direction. The experimental results show that GPKEC can effectively suppress the chatter vibration in a single point turning process, even in presence of an appreciable change in the dynamics of the process. GPKEC has also been observed to be robust against step disturbances.
Authors
Citation
Anwar, S. and Chandra, A., "Generalized Predictive Kinetic Energy Controller for Vibration Suppression in Turning," SAE Technical Paper 1999-01-1873, 1999, https://doi.org/10.4271/1999-01-1873.Also In
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