Reduction of stresses in a passenger car frame under operating modes by means of an intermediate adapter

Alyona Lovska; Ján Dižo; Vasyl Ravlyuk; Dmytro Skurikhin; Andrij Rybin

doi:10.14513/actatechjaur.00779

Authors

Alyona Lovska Department of Wagon Engineering and Product Quality, Ukrainian State University of Railway Transport Feuerbakh sq., 7, Kharkiv, Ukraine, 61050
Ján Dižo Department of Transport and Handling Machines, Faculty of Mechanical Engineering, University of Žilina Univerzitná 8215/1, 010 26 Žilina, Slovak Republic
Vasyl Ravlyuk Department of Wagon Engineering and Product Quality, Ukrainian State University of Railway Transport Feuerbakh sq., 7, Kharkiv, Ukraine, 61050
Dmytro Skurikhin Department of Wagon Engineering and Product Quality, Ukrainian State University of Railway Transport Feuerbakh sq., 7, Kharkiv, Ukraine, 61050
Andrij Rybin Department of Wagon Engineering and Product Quality, Ukrainian State University of Railway Transport Feuerbakh sq., 7, Kharkiv, Ukraine, 61050

DOI:

https://doi.org/10.14513/actatechjaur.00779

Keywords:

Transport mechanics, passenger car frame, frame load, frame strength, intermediate adapter, passenger transportation

Abstract

The article highlights the results of determining the strength of the passenger car frame under operational loading modes. The most loaded components of the frame are determined. It is proposed to use an intermediate adapter between the passenger car frame and the body to reduce the load on the frame. The peculiarity of such an adapter is that it consists of two metal sheets with a layer of energy-absorbing material in-between. The thickness of the adapter’s sheets is determined using the Bubnov-Galerkin method. The results of the strength calculation for the frame with an intermediate adapter are presented. They demonstrate that the design solutions proposed can reduce the stresses in the frame by 25% and displacements by 29% compared to those for a typical design. The research will contribute to the development of best practices for the design of modern passenger car structures with improved technical, economic and operational characteristics, and for the higher efficiency of passenger car operations.

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