Friction-induced vibration of a stick–slip oscillator with random field friction modelling

Hu, Han ORCID: 0000-0001-9198-6335, Batou, Anas and Ouyang, Huajiang ORCID: 0000-0003-0312-0326 (2023) Friction-induced vibration of a stick–slip oscillator with random field friction modelling. Mechanical Systems and Signal Processing, 183. p. 109572.

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Official URL: http://dx.doi.org/10.1016/j.ymssp.2022.109572

Abstract

In this paper, stochastic planar stick–slip motions are investigated using a slider-on-belt model where the coefficient of friction (COF) of the contact interface is modelled as a random field. New three-variable stick–slip transition criteria are proposed to improve the accuracy and robustness of the algorithm. Stochastic analyses are performed concerning the Peak-to-Valley value of the displacement and friction forces and the time duration of the stick state. It is found that the correlation length of the COF random field is dominantly responsible for the stochastic behaviours of the system. In contrast, the belt velocity and the mean value of the COF have a significant influence on the time duration of the stick state compared with the corresponding deterministic slider-on-belt model.

Item Type:	Article
Uncontrolled Keywords:	Stick-slip motion, Random field, Coefficient of friction, Stochastic analysis
Divisions:	Faculty of Science and Engineering > School of Engineering
Depositing User:	Symplectic Admin
Date Deposited:	05 Aug 2022 10:26
Last Modified:	28 Jul 2023 01:30
DOI:	10.1016/j.ymssp.2022.109572
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3160424