Improvement in life of wheelsets due to wear-resistant wheel profiles
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2015, Vol 1, Issue 1
Abstract
The paper deals with the problem of improvements in life of the wheelset due to a rational use of metal for truing the wheel rims to wear-resistant profiles. In the presence of ITM-73 and ITM-73-01 wear-resistant profiles the pressing problem arose for analyzing their versions in repair considering their advantages. The research subject is to compare versions of wheel truing to mentioned profiles to improve life of wheelsets and to study selecting rational versions of rim truing as related to fault types of wheels and their operational stages. The graphical and analytical method was used to resolve the problem under consideration allowing the estimation of metal saving associated with the ITM-73-01 wear-resistant profile and the determination of a rational version of wheel truing to one of wear-resistant profiles. A number of dependencies of a possible number of wheel truing on geometrical parameters of the rim of a railway worn wheel have been derived in this paper. A rational version of one of wear-resistant profiles related to fault types of wheels and their operational stages can be established using these dependencies. Wheel truing based on the versions proposed results in the increased number of possible retruing the wheelset due to a rational use of metal according to the rim thickness. It is expected that a rational use of these two wear-resistant wheel profiles could be instrumental in improvements of the wheelset life and would result in substantial cost advantages
Authors and Affiliations
V. Ushkalov, N. Bezrukavyi
Keywords
Related Articles
- EP ID EP355148
- DOI -
- Views 76
- Downloads 0
Features of algorithms for computing the flow in the passage of a counter-pressure air intake
Air intake shape designing is the key problem in the development of a ramjet. The aim of this paper is to formulate an algorithm for on-the-fly computing of supersonic flow stagnation in the passage of an air intake at...
Considering dissipative forces for mathematical modeling longitudinal vibrations of liquid launch vehicle body
The effects of fluid filling the propellant tanks on the characteristics of the dominant harmonics of the lon-gitudinal vibrations of the launch vehicle body with a tandem configuration of stages are analyzed using the u...
Methodic approach to calculations and selection of parameters of splashing system for propellant preparation
One of the important problems is to provide the required parameters of propellant components, which are attained by the propellant preparation. This problem is resolved by facilities for spacecraft propellant filling. In...
Modifications of advanced thrust-vector control system for engine of third stage of Cyclone-type launch vehicle
The results of studies of bifunctional system versions for the thrust-vector control system of a liquid rocket engine are reported. Studies have been focused on the flight control of an advanced space stage of a launch v...
Numerical simulation of axisymmetric flow past extended compound body using test particles method with hierarchic grids
The present paper continues the study on evolution of the test particles method (TPM). The advantages of a hierarchic two-level non-uniform grid over a computational uniform grid (CUG) are presented with provision for ex...