Improving the technical and operational characteristics of the railway carriage.

The article discusses methods to enhance the technical and operational characteristics of railway carriages through innovative design solutions. It primarily focuses on reducing the weight of the railway carriage by modifying the supporting floor, which improves energy efficiency and performance. Mathematical modeling and strength calculations have demonstrated that the modified supporting floor can significantly reduce maximum equivalent stresses, thereby ensuring the reliability and safety of the structure.

Application of Cold Plasma to Reduce the Roughness of the Working Surface of a Railway Car Center Plate.

This paper presents a study on the use of cold plasma to reduce the roughness of the working surface of center plates of railway cars. The use of cold plasma is a promising method of surface treatment which allows for a significant reduction in roughness without changing the mechanical and chemical properties of the material. As part of the study, experiments were conducted on the treatment of center plates with cold plasma, the surface roughness was measured before and after the treatment, and the microhardness, microstructure, and chemical composition of the material were analyzed.