Open AccessFRICTION UNDER LARGE-AMPLITUDE NORMAL OSCILLATIONS
Author(s) -
М. В. Попов
Publication year - 2021
Publication title -
facta universitatis. series: mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 16
eISSN - 2335-0164
pISSN - 0354-2025
DOI - 10.22190/fume201226017p
Subject(s) - oscillation (cell signaling) , cylinder , amplitude , vibration , displacement (psychology) , stiffness , mechanics , waveform , plane (geometry) , constant (computer programming) , mathematical analysis , physics , classical mechanics , mathematics , structural engineering , geometry , acoustics , engineering , computer science , optics , psychology , genetics , quantum mechanics , voltage , psychotherapist , biology , programming language
Building on a recently proposed contact-mechanical theory of friction control by external vibration, the case of large-amplitude normal oscillation is revisited. It is shown that the coefficient of friction can be expressed in particularly simple form if the waveform of the displacement oscillation is triangular or rectangular, and the contact stiffness is constant. The latter requirement limits the scope of the exact solutions to contacts between a plane and a flat-ended cylinder or a curved shape with a wear flat, but the adopted methodology also enables efficient numerical solution in more general cases.