Volume 43, No 3, 2021, Pages 480-488

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Computational Method for Estimating Contact Parameters and Service Life of Cylindrical Metal-Polymer Sliding Guides

Authors:

M. Chernets , A. Kornienko , S. Fedorchuk ,
Yu. Chernets

DOI: 10.24874/ti.1047.01.21.03

Received: 30 January 2021
Revised: 11 March 2021
Accepted: 30 March 2021
Published: 15 September 2021

Abstract:

The method of calculating the contact strength and service life of cylindrical metal-polymer sliding guides (linear bearings) based on the author's research methodology of the wear kinetics of materials during sliding is given. The influence of load, bushing diameter and radial clearance on the maximum initial pressures in the guide is investigated. According to the developed mathematical model of wear the estimation of influence of composite bushing wear on change of contact parameters such as initial contact pressure and contact angle is carried out. The prediction calculation of guide service life depending on the above-stated factors is also carried out. Quantitative and qualitative regularities of influence of the accepted factors on contact pressure and service life of metal-polymer sliding guides are established.

Keywords:

Cylindrical metal-polymer guide, Computational method, Epoxy composite materials, Maximum contact and tribocontact pressures, Contact and tribocontact angles, Service life