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A Second Order Dynamic Friction Model Compared to Commercial Stick-Slip Models

  • Friction has long been an important issue in multibody dynamics. Static friction models apply appropriate regularization techniques to convert the stick inequality and the non-smooth stick-slip transition of Coulomb’s approach into a continuous and smooth function of the sliding velocity. However, a regularized friction force is not able to maintain long-term stick. That is why, dynamic friction models were developed in the last decades. The friction force depends herein not only on the sliding velocity but also on internal states. The probably best known representative, the LuGre friction model, is based on a fictitious bristle but realizes a too simple approximation. The recently published second order dynamic friction model describes the dynamics of a fictitious bristle more accurately. Its performance is compared here to stick-slip friction models, developed and launched not long ago by commercial multibody software packages.
Metadaten
Author:Georg RillORCiDGND, Matthias Schuderer
DOI:https://doi.org/10.20944/preprints202306.1233.v1
Document Type:Preprint
Language:English
Year of first Publication:2023
Release Date:2023/06/23
Tag:commercial stick-slip friction models; dynamic friction model; long-term stick; multibody dynamics
Institutes:Fakultät Maschinenbau
Publication:Externe Publikationen
research focus:Produktion und Systeme
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International