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

fYear

2010

fDate

4-7 July 2010

Firstpage

3264

Lastpage

3269

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2010 IEEE International Symposium on

Conference_Location

Bari

Print_ISBN

978-1-4244-6390-9

Type

conf

DOI

10.1109/ISIE.2010.5637702

Filename

5637702