Open AccessInfluence of track irregularities on the vertical acceleration of cars during high-speed traffic
Author(s) -
В. Н. Смирнов,
Andrey V. Lang,
Nikita A. Labutin
Publication year - 2021
Publication title -
izvestiâ peterburgskogo universiteta putej soobŝeniâ
Language(s) - English
Resource type - Journals
eISSN - 2658-6851
pISSN - 1815-588X
DOI - 10.20295/1815-588x-2021-3-335-339
Subject(s) - track (disk drive) , bridge (graph theory) , acceleration , structural engineering , differential (mechanical device) , differential equation , moving load , computer science , control theory (sociology) , engineering , mathematics , mathematical analysis , mechanical engineering , physics , finite element method , classical mechanics , aerospace engineering , medicine , control (management) , artificial intelligence
Objective: Obtaining differential equations of the “bridge-train” system, the solution of which allows one to identify the optimal dynamic parameters of the vehicle of high-speed rolling stock and bridge structures when rolling load moves at high speed. Methods: Derivation of differential equations of the “bridge– train” system by the analytical method. Results: Obtaining formulas for determining the acceleration of the spring borne part of rolling stock vehicles depending on track irregularities. Practical importance: Based on the results of calculations according to these formulas, a reasonable assignment of the values of camber and the possibility of assessing the effect of random irregularities of the rail track on the bridge are provided.