Requirements for attachments for sliding rail lashes of seamless track

Abstract

The article is devoted to the determination of the technical parameters of the design of attachments for the production of works on laying rail lashes of a seamless track. The goal is set and the task of the study is formulated. The problem is solved by the simulation method. In the Femap with NX Nastran software package, a finite element model of a rail string was developed, which makes it possible to assess the stress-strain state of the rail strings when they are pushed onto the under-rail supports. During calculations, the model of the rail string is loaded in accordance with the data of the technological process (lifting and shifting of the rail string), as a result, the reaction forces at the points of load application are determined. Based on the reaction forces, technical requirements for attachments are established. Validation calculations were made to check the reliability of the model.