Entity

Time filter

Source Type


Chernets' M.V.,Franko Drohobych State Pedagogic University | Chernets' M.V.,Lublin University of Technology | Kelbinski E.,Lublin University of Technology | Yarema R.Ya.,Franko Drohobych State Pedagogic University
Materials Science | Year: 2011

We develop a method for the predictive estimation of wear and durability of cylindrical gears taking into account the influence of the wear of teeth on the geometric and loading characteristics of the engagement. On the basis of the numerical solution of the problem, we confirm that the influence of wear on the service life of the gear is significant. We also construct the plots that can be used to describe the character of this influence. © 2011 Springer Science+Business Media, Inc. Source


Chernets' M.V.,Franko Drohobych State Pedagogic University | Chernets' M.V.,Lublin Polytechnic Institute | Yarema R.Y.,Lviv Locomotive Repair Plant | Chernets' Y.M.,Franko Drohobych State Pedagogic University
Materials Science | Year: 2012

We developed a method for the numerical evaluation of the total influence of correction and wear of the teeth on the service life of cylindrical gears and contact stresses. The results of numerical calculations make it possible to establish the qualitative and quantitative regularities of the influence of both structural (angular correction of the engagement) and operating (linear wear of the teeth) factors. It is shown that the angular correction enables us to get the optimal shifting coefficients for which the service life is maximum as compared with the uncorrected engagement. It is also demonstrated that the actual period of operation and load-carrying capacity of the gear is higher if we take into account the changes in the initial profiles of the teeth as a result of their wear. © 2012 Springer Science+Business Media New York. Source


Chernets M.V.,Franko Drohobych State Pedagogic University | Chernets M.V.,Lublin Polytechnic Institute | Zhidik V.B.,Franko Drohobych State Pedagogic University
Materials Science | Year: 2011

We solve a quasistatic contact problem of interaction of cylindrical elements with minor cutting of their contours. We study joints in which single-area or mixed (single-and-double-area) types of contact are realized. The basic regularities of changes in the maximum contact pressure caused by the rotation of a disk with certain degree of ovality in a hole with different types of cutting are established. © 2011 Springer Science+Business Media, Inc. Source

Discover hidden collaborations