Gains Selection for a Variable Gain Adaptive Control System for Turning

[+] Author and Article Information
Shield Bao-Hsin Lin, Oren Masory

Mechanical Engineering Department, Texas A&M University, College Station, TX 77843-3123

J. Eng. Ind 109(4), 399-403 (Nov 01, 1987) (5 pages) doi:10.1115/1.3187146 History: Received July 10, 1987; Online July 30, 2009


The adaptive control constraint system described is a nonlinear, sampled data system designed to regulate the cutting force during turning operations. The controller keeps the system stable under wide variations in process parameters, limits the force overshoot, and provides fast transient response. The stability region of the nonlinear system was determined in order to define the boundaries of the gain space within which the optimal gains that minimize the ISE index of performance were selected. As a result, a data base for optimal gains as functions of process parameters was generated. Since in most cases the depth-of-cut changes in an unknown manner, the use of this data base is limited. To overcome this problem, an on-line adaption scheme of the gains was designed to achieve optimal response without the need for depth-of-cut measurements. With this control scheme, a series of simulations were performed that demonstrate excellent response under wide variations of process parameters.

Copyright © 1987 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In