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A New Friction Model for Mechanical Transmissions Considering Joint Temperature

[+] Author Affiliations
Giovanni Legnani, Luca Simoni, Antonio Visioli

University of Brescia, Brescia, Italia

Manuel Beschi

Istituto di Tecnologie Industriali e Automazione, Milano, Italia

Paper No. DETC2016-60523, pp. V006T09A020; 10 pages
doi:10.1115/DETC2016-60523
From:
  • ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Charlotte, North Carolina, USA, August 21–24, 2016
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5018-3
  • Copyright © 2016 by ASME

abstract

This article illustrates a model that describes the behaviour of power loss (friction) in mechanical transmissions. The model is applied to joints of an industrial manipulator, it is justified on the bases of preliminary observations of some robot behaviour and it is validated with an extensive experimentation on a commercial 6 degrees of freedom anthropomorphic manipulator. The paper shows that friction decreases with increasing temperature which in turn depends on the working cycle of the manipulator. The proposed model permits a prediction of the variation of the friction contribution during extensive working operations and it is suitable for industrial applications to improve the control performance or to predict the energy consumption.

Copyright © 2016 by ASME

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