In this paper, a mechanistic model-based force feedback scheme is presented for improving the tracking performance of radial contour turning (also known as the non-circular turning process) with a voice-coil actuator. The current form of voice-coil actuation mechanism (with acceleration feedback) is briefly described and its limitations for high frequency disturbance rejection are identified. Stability issues for the proposed force feedback scheme are discussed via small gain theorem. Tracking performance improvements due to the force feedback scheme are investigated via simulations for different types of non-circular contours and cutting conditions. The effects of various process parameters on relative tracking improvements are also analyzed.
|Original language||English (US)|
|Number of pages||17|
|Journal||International Journal of Machine Tools and Manufacture|
|State||Published - Jun 2001|
Bibliographical noteFunding Information:
The authors gratefully acknowledge the financial support of this research by the National Institute of Standards and Technology — Advanced Technology Program through Saginaw Machining Systems, Inc., Troy, MI. The authors would also like to acknowledge their interaction with Prof. T. C. Tsao and Dr. Alexander Babinski on this project.
- Contour turning
- Force-feedback scheme
- Mechanistic force model