Adaptive pole-zero cancellation in grinding force control

Author

Jenkins, Hodge E. ; Kurfess, Thomas R.

Author_Institution

George W. Woodruff Sch. of Mech. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

7

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

363

Lastpage

370

Abstract

Describes the development of an adaptive force controller for the grinding process. Using a real-time grinding model an adaptive pole-zero cancellation technique is developed and implemented to reduce the grinding process variation. Real-time model parameter estimation and controller designs are implemented to achieve higher bandwidth control capability than is presently available in machine tool controllers. The results of this research have culminated in a stable adaptive force controller for grinding, and have demonstrated the potential for increasing productivity. The implementation of this adaptive pole-zero cancellation in force controlled grinding provides a superior surface following capability for fine finishing, as compared to fixed gain controllers

Keywords

adaptive control; control system synthesis; force control; grinding; parameter estimation; poles and zeros; process control; stability; adaptive force controller; adaptive pole-zero cancellation; controller designs; fine finishing; fixed gain controllers; grinding force control; higher bandwidth control capability; machine tool controllers; real-time grinding model; real-time model parameter estimation; surface following capability; Adaptive control; Bandwidth; Equations; Force control; Machining; Mechanical engineering; Parameter estimation; Programmable control; Teeth; Wheels;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/87.761056

Filename

761056