By Topic

Modeling of pivot friction using relay function and estimation of its frictional parameters

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Chang, H.S. ; Electro Mech. Lab., Samsung Adv. Inst. of Technol., Suwon, South Korea ; Baek, S.E. ; Park, J.H. ; Byun, Y.K.

One way of modeling frictional effects that arise from pivot ball bearing in rotary disk drive actuator requires a special experimental setup. In this paper, a revised model from two-slope and three-slope model with omission of first slopes from both position and velocity feedback and an addition of relay, is presented. The hysteresis characteristics of ball bearing are much more accurately described by a relay added on the velocity feedback. For parametrization, a mathematical description of the frictional relay is obtained, and both linear and nonlinear terms in the friction model are treated simultaneously by using conventional recursive-least-square method incorporating a new technique that extracts Vth threshold parameter. The effectiveness of the new friction model is tested by a parameter estimation scheme, and simulation and experiment of the estimation algorithm are also demonstrated for overall performance

Published in:

American Control Conference, 1999. Proceedings of the 1999  (Volume:6 )

Date of Conference: