Generalized Predictive Kinetic Energy Controller for Vibration Suppression in Turning

1999-01-1873

04/14/1999

Event
SAE Earthmoving Industry Conference & Exposition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/1999-01-1873
Pages
14
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.
Additional Details
Publisher
Published
Apr 14, 1999
Product Code
1999-01-1873
Content Type
Technical Paper
Language
English