Session B: Railway Engineering
Tests for the assessment of devices for securing semi-trailers during transport on a freight wagon
1 University of Belgrade, Faculty of Mechanical Engineering, Rail Vehicle Department, Belgrade, Serbia
2 University of Belgrade, Faculty of Mechanical Engineering, Laboratory of Rail Vehicle, Belgrade, Serbia
2 University of Belgrade, Faculty of Mechanical Engineering, Laboratory of Rail Vehicle, Belgrade, Serbia
Corresponding author: Dragan Milković · dmilkovic@mas.bg.ac.rs
Abstract
The WAG TSI defines requirements for devices used to secure semi-trailers on freight wagons. The device must hold the semi-trailer in a safe position by withstanding longitudinal, lateral, and downward vertical forces in accordance with the design operating state. Following a 2019 accident, in which a semi-trailer detached during a severe storm and struck an oncoming passenger train, Denmark introduced controls and restrictions that have now been accepted and included in the WAG TSI. Additionally, the device must lock semi-trailers by withstanding upward vertical forces caused by crosswinds at the minimum crosswind stability; in the absence of this data, the upward force must be at least 85 kN. This paper presents real-world tests of a device for securing a semi-trailer to a freight wagon, along with an assessment of its conformity with EU regulations.
Keywords
Semi-trailerKingpinSecuring deviceVertical upward force
Cite this paper
Recommended citation · Engineering TODAY style
D. Milković, S. Radulović, A. K. Miličić, G. Simić, and O. Obradović, “Tests for the assessment of devices for securing semi-trailers during transport on a freight wagon”, Proceedings of the XII International Triennial Conference Engineering TODAY (ET 2026), Vrnjačka Banja (Serbia), pp. B11–B16, https://doi.org/10.46793/ET26.B02M, (2026)