Title Unsymmetric dry friction for models of surface cleaning /
Translation of Title Несиметричне сухе тертя для моделей очищення поверхні.
Authors Ragulskis, K ; Bubulis, A ; Pauliukas, A ; Paškevičius, P ; Maskeliūnas, R ; Ragulskis, L
DOI 10.36910/automash.v1i14.343
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Is Part of Advances in mechanical engineering and transport = Сучасні технології в машинобудуванні та транспорті.. Lutsk : Lutsk National Technical University. 2020, vol. 1, no. 14, p. 26-34.. ISSN 2313-5425
Keywords [eng] surface cleaning ; asymmetric dry friction ; numerical model ; nonlinear phenomenon ; graphic results
Abstract [eng] Surface cleaning is an important engineering problem. In the process of surface cleaning various nonlinear effects take place. Among the various nonlinear effects taking place in such systems dry friction is an important one. Thus a number of papers are devoted to the investigation of this effect. In numerical investigations usually some approximation of the transition regions between different constant values of the force of dry friction is used. This enables to approximate the nonlinear effects taking place in such systems. For representation of some of those effects the model of unsymmetric dry friction is proposed in this paper. The investigated model has one degree of freedom and incorporates a specific type of nonlinearity. It involves the use of the quantities from the previous moment of time and logical operations “and” and “or”. Numerical procedure for investigation of this phenomenon is described in detail. Results of calculations for various parameters of the investigated dynamical system are presented and analysed. From the obtained results the applicability of this model for reproduction of the investigated nonlinear phenomenon is seen. Variation of displacement as function of time, variation of velocity as function of time, variation of acceleration as function of time, variation of velocity multiplied by acceleration as function of time are investigated. The proposed model of unsymmetric dry friction is applicable as part of other more complicated models used for the investigations of the process of surface cleaning.
Published Lutsk : Lutsk National Technical University
Type Journal article
Language English
Publication date 2020