The influence of the "train-track" system parameters on the maximum longitudinal forces' level

• Autorzy: Pshinko Oleksandr , Ursulyak Liudmyla , Kostrytsia Serhii , Fedorov Yevhen , Shvets Anzhela

Identyfikatory

DOI

10.20858/tp.2019.14.4.14

• Języki publikacji: EN

Abstrakty

EN

The main objective of the simulation is to study the effect caused by the parameters of the longitudinal profile on the maxima of longitudinal forces in freight trains of increased length during adjustment braking and running-out. To decrease the number of numerical experiments, some empirical formulae for estimating the maximum longitudinal forces during the motion of freight trains along the track with various configurations of its longitudinal profile's gradient changes have been obtained for the first time. Comparison of those forces with the permitted values, from the point of view of the railway stock strength and eventual vehicle derailment, has been performed. As a result of numerical integration of the system of non-linear differential equations of train motion for the considered driving modes, the values of the greatest longitudinal shock and quasi-static forces, as well as the dependence of the latter on the train length, initial braking velocity, on the algebraic difference of gradients and the length of the horizontal area that separates two gradients with opposite signs are estimated. The proposed mathematical model and methodology can be applied during standardization of the longitudinal profile's parameters from the point of view of the freight traffic safety for the trains of various length.

Słowa kluczowe

EN

mathematical modelling; parameters of the longitudinal profile; regulating braking; longitudinal forces of impact and quasistatic character; braking distances

PL

modelowanie matematyczne; parametry profilu podłużnego; regulacja hamowania; wzdłużne siły uderzenia; droga hamowania

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Transport Problems
• Rocznik: 2019
• Tom: T. 14, z. 4
• Strony: 161--172
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Pshinko Oleksandr

• University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, 49010 Dnipro, Ukraine

autor

Ursulyak Liudmyla

• University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, 49010 Dnipro, Ukraine

autor

Kostrytsia Serhii

• University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, 49010 Dnipro, Ukraine

autor

Fedorov Yevhen

• University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, 49010 Dnipro, Ukraine

autor

Shvets Anzhela

• University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, 49010 Dnipro, Ukraine

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).