Effect of pressure changes in sliding contact

Vera Deeva, Stepan Slobodyan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The sliding contact when the air together with wear particles flow in contact area between commutator and brush is considered. The dynamical interaction between two surfaces is probabilistic. The behaviour of space-time-varying process is described by the differential equations, which are generally very difficult to solve. The simple numerical solution applying the method of Galerkin approximation to estimate the change in the pressure field in thin contact layer is obtained. It was found that under the leading edge of the brush the pressure change doesn't exceed 0.07 of the maximum value. The numerical simulations of the absolute error are presented for the 0.1, 0.2, 0.5, and 1 of the relative length. The relative error of pressure changes for small contact area is smaller (1 - 0.8e 0.1τ). It is concluded that the approximate solution tends to the exact one. Moreover, it is shown that as the sliding velocity decreases, the relative error of the pressure change tends to the zero.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalInternational Journal of Engineering and Technology(UAE)
Volume7
Issue number2
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

Contacts (fluid mechanics)
Pressure
Brushes
Electric commutators
Differential equations
Air
Wear of materials
Computer simulation

Keywords

  • Approximate error
  • Debris
  • Numerical simulation
  • Tribological process

ASJC Scopus subject areas

  • Biotechnology
  • Computer Science (miscellaneous)
  • Environmental Engineering
  • Chemical Engineering(all)
  • Engineering(all)
  • Hardware and Architecture

Cite this

Effect of pressure changes in sliding contact. / Deeva, Vera; Slobodyan, Stepan.

In: International Journal of Engineering and Technology(UAE), Vol. 7, No. 2, 01.01.2018, p. 167-170.

Research output: Contribution to journalArticle

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