Abstract

Ball-screw-driven stages are often used as feed systems of machine tools. Precise control of the stage is desired; however, rolling friction degrades tracking accuracy and causes a large tracking error called a quadrant glitch. Although model-based feedforward friction compensation effectively suppresses the tracking error, the compensation often results in a negative quadrant glitch, which is the tracking error in the direction opposite to the quadrant glitch. This study aims to present a suppression method of the negative quadrant glitch. In this study, initial value compensation with additional input is exploited. The approach is evaluated through simulations and experiments.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.