Improvement of the running gear of a prospective freight car
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2017, Vol 4, Issue 4
Abstract
This work is concerned with the resolution of the problem of Ukrainian freight car fleet upgrading with the aim to improve car ride quality, extend running gear service life, and increase train operation safety. The aim of this work is to develop recommendations on improvement of the running gear of prospective freight cars to increase their speed and ride quality and reduce wheel wear. Use is made of mathematical simula-tion, numerical integration, oscillation theory, and statistical dynamics methods. The paper presents the results of investigations into the efficiency of introduction of new elements into the design of 18-7020 trucks, such as cross links between the side frames, a resilient adapter in the journal box as-sembly, and the ITM-73-02 wheel profile developed at the Institute of Technical Mechanics. Their effect on car vibration and car–rail interaction is studied for a freight car moving at different speeds in tangent and curved track sections. Parameter values for the additional links are recommended. It is concluded that the proposed redesign makes it possible to develop prospective trucks for new genera-tion cars with improved ride quality and low wheel wear.
Authors and Affiliations
V. Ushkalov, I. Malysheva, T. Mokriy, N. Bezrukavyi
Keywords
Related Articles
- EP ID EP348262
- DOI -
- Views 66
- Downloads 0
Numerical simulation of supersonic flow over Zenit-2SLБ launch vehicle
The results of a numerical simulation of a supersonic flow over the Zenit-2SLБ launch vehicle at angle of attack 5, 15 and 25 degrees are presented. Attention in this work is devoted to obtaining the proved three-dimensi...
Synthesis of suboptimal compensators of disturbances in form of observer of extended state vector………
The purpose of this paper is to synthesize disturbance compensators in the form of an extended state-vector observer, taking into account the chosen optimality criterion and restrictions to provide given quality indices...
Calcu- lating models for evaluation of stressed- strained conditions of bone tissue under total hip replacement
In the field of applied biomechanics the development of calculating models for studying the stressed-strained state of the bone tissue in a total hip remplacement, which provides man’s movement and withstands a load, is...
Computations of contactless effects on space debris object using its known contour
The proposed previously simplified approach to the determination of the effects of space debris on the ob-ject from the electric jet engine of a spacecraft (a shepherd) in removing space debris using the ion-beam shep-he...
Aerodynamic optimization of spatial form of impeller blade of supersonic compressor stage
The study is addressed to an aerodynamic optimization of a high-loaded impeller of a supersonic compres-sor stage. A numerical simulation of the flow through the impeller is the basic tool using the complete averaged Nav...