Occurrence of Torsional Oscillations in Railway Wheelsets

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00302546" target="_blank" >RIV/68407700:21220/16:00302546 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Occurrence of Torsional Oscillations in Railway Wheelsets

Popis výsledku v původním jazyce

The latest achievements in semiconductor electro technology allowed to operate railway locomotives with very high tractive power. Transmission of high torque values to wheels reveals failures in the press-fitted joint between the wheel and the axle that were almost unknown until these days. One of the specific phenomena participating in the creation and developing of fatigue failures are periodically repeating oscillations of running wheelsets, which may appear and compromise the safety of railway vehicles. The article is devoted to simulation of dynamical processes influencing development of such phenomenon that may occur in drives of the vehicles. Models of such processes involve both dynamics in the transmission of the torque to the wheels and the variable external influences (adhesion conditions, track irregularities, variation of wheel forces, etc.), which the running wheel is exposed to. A procedure of creating mathematical model based on the idea of simplified description is proposed and described in the article. Consequent use of such mathematical modelling is described when a Simulink model of a real railway vehicle is designed. In the simulation experiments the Simulink model serves for the parametric analysis of individual components. The model is ready to make an effective design of control for suppression unwanted impacts

Název v anglickém jazyce

Occurrence of Torsional Oscillations in Railway Wheelsets

Popis výsledku anglicky

The latest achievements in semiconductor electro technology allowed to operate railway locomotives with very high tractive power. Transmission of high torque values to wheels reveals failures in the press-fitted joint between the wheel and the axle that were almost unknown until these days. One of the specific phenomena participating in the creation and developing of fatigue failures are periodically repeating oscillations of running wheelsets, which may appear and compromise the safety of railway vehicles. The article is devoted to simulation of dynamical processes influencing development of such phenomenon that may occur in drives of the vehicles. Models of such processes involve both dynamics in the transmission of the torque to the wheels and the variable external influences (adhesion conditions, track irregularities, variation of wheel forces, etc.), which the running wheel is exposed to. A procedure of creating mathematical model based on the idea of simplified description is proposed and described in the article. Consequent use of such mathematical modelling is described when a Simulink model of a real railway vehicle is designed. In the simulation experiments the Simulink model serves for the parametric analysis of individual components. The model is ready to make an effective design of control for suppression unwanted impacts

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JO - Pozemní dopravní systémy a zařízení

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

WSEAS Transactions on Systems

ISSN

1109-2777

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

27

Stát vydavatele periodika

GR - Řecká republika

Počet stran výsledku

10

Strana od-do

252-261

Kód UT WoS článku

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EID výsledku v databázi Scopus

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