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A Second Order Dynamic Friction Model Compared to Commercial Stick-Slip Models
Version 1
: Received: 16 June 2023 / Approved: 16 June 2023 / Online: 19 June 2023 (09:44:43 CEST)
A peer-reviewed article of this Preprint also exists.
Rill, G.; Schuderer, M. A Second-Order Dynamic Friction Model Compared to Commercial Stick–Slip Models. Modelling 2023, 4, 366-381. Rill, G.; Schuderer, M. A Second-Order Dynamic Friction Model Compared to Commercial Stick–Slip Models. Modelling 2023, 4, 366-381.
Abstract
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.
Keywords
Dynamic Friction Model; Commercial Stick-Slip Friction Models; Long-term Stick; Multibody Dynamics
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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