Title :
Vibration damping for machine tool servo drives by load acceleration feedback
Author :
Zirn, Oliver ; Jaeger, Christian
Author_Institution :
Inst. fur Prozess- und Produktionsleittechnik, Tech. Univ. Clausthal, Clausthal-Zellerfeld, Germany
Abstract :
Servo axes with standard P/PI-cascade feedback controller provide insufficient damping of structural vibrations at machine tools. The axis performance can be improved significantly by state space control extensions that are now available for commercial machine tool control systems. The benefit of state space control extensions depend directly on the suitable state capturing in the machine structure. Here, acceleration capturing has turned out to be advantageous compared to additional axis position measurement systems. This contribution explains the control theory of acceleration feedback and elucidates the possible benefit by two exemplary machine tool axes.
Keywords :
PI control; acceleration control; cascade control; damping; feedback; machine tools; position control; position measurement; servomechanisms; state-space methods; vibration control; acceleration capturing; axis performance; axis position measurement system; load acceleration feedback; machine structure; machine tool axis; machine tool control system; machine tool servo drive; servo axis; standard P/PI-cascade feedback controller; state space control; structural vibration; vibration damping; Acceleration; Accelerometers; Aerospace electronics; Frequency response; Machine tools; Servomotors; Vibrations;
Conference_Titel :
Industrial Electronics (ISIE), 2010 IEEE International Symposium on
Conference_Location :
Bari
Print_ISBN :
978-1-4244-6390-9
DOI :
10.1109/ISIE.2010.5637702
