On the problems of lateral force effects of railway vehicles in S-curves. Issue 8 (3rd August 2022)

• Record Type: Journal Article
• Authors: Michálek, Tomáš; Kohout, Martin
• Is Part Of: Vehicle system dynamics. Volume 60:Issue 8(2022)
• Page Start: 2739
• Page End: 2757
• Publication Date: 2022-08-03
• Subjects: S-curve -- equivalent guiding force -- four-axle vehicle -- multi-body simulation -- active radial wheelset steering -- active yaw dampers; Motor vehicles -- Dynamics -- Periodicals; Electronic journals; 629.231
• DOI: 10.1080/00423114.2021.1917631
• Languages: English
• ISSNs: 0042-3114

Abstract

Abstract : This paper deals with the lateral force effects of conventional four-axle railway vehicles in conditions of S-shape curves, which are represented especially by switches negotiated in the diverging direction. With the use of a multi-body model of an electric locomotive, a sensitivity analysis of selected vehicle parameters on the maximum guiding force in the S-curve is performed. Subsequently, a definition of so-called equivalent guiding force is proposed. This simplified parameter can be used for the purposes of a quantification of the damaging effects of a vehicle in switches, e.g. in wear-dependent track access charge systems. Attention is also paid to the particularities of systems for active radial bogie or wheelset steering in conditions of tight S-curves and relevant requirements on these systems. The problem of a punctual on-board recognition of the S-curve is demonstrated using experimental data measured on an electric locomotive.