A computational procedure for the dynamic analysis of the catenary-pantograph interaction in high-speed trains

• Autorzy: Ambrósio J. , Pombo J. , Pereira M. , Antunes P. , Mósca A.

Warianty tytułu

PL

Procedura obliczeniowa w analizie dynamiki układu sieci trakcyjnej i pantografu szybkobieżnego pociągu

• Języki publikacji: EN

Abstrakty

EN

The quality of the current collection of high-speed trains is dependent on the compatibility of the catenary and pantograph dynamics and on its implications on the contact force. The design and analysis of these systems using proper computational procedures allows capturing all the relevant features of their dynamic behavior. This work proposes an approach to the dynamics of the energy collection system based on the finite elements method, for the catenary, and on multibody dynamics methods, for the pantograph, integrated via a co-simulation procedure. A contact model based on a penalty formulation is selected to represent the pantograph-catenary interaction. The methodology is applied to the study of high speed train operations with multiple pantographs, as this environment constitutes one of the limiting scenarios for the increase of the operation speed.

PL

Sprawność obecnie eksploatowanych pociągów wysokich prędkości zależy od dynamicznej kompatybilności układu pantografów z siecią trakcyjną i wynikającymi siłami kontaktu pomiędzy tymi elementami. Projektowanie i analiza tego układu z wykorzystaniem odpowiednich procedur obliczeniowych pozwala uchwycić najważniejsze cechy dynamiczne obiektu badań. W pracy zaproponowano zastosowanie metody elementów skończonych do analizy dynamiki sieci energetycznej oraz równania ruchu wieloelementowego układu brył sztywnych do opisu zachowania się pantografu. Do tego celu użyto odpowiedniej procedury współsymulacyjnej. Do reprezentacji interakcji pomiędzy siecią a pantografem, wybrano sformułowanie oparte na funkcji kary. Metodologię przetestowano dla przypadku pociągów wysokich prędkości z wieloma pantografami. Ich jakość oraz jakość współpracy z siecią trakcyjną stanowi jeden z czynników ograniczających osiąganie coraz większych prędkości maksymalnych pociągów.

Słowa kluczowe

EN

multibody dynamics; finite elements; contact mechanics; co-simulation

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2012
• Tom: Vol. 50 nr 3
• Strony: 681--699
• Opis fizyczny: Bibliogr. 36 poz., rys., tab.

Twórcy

autor

Ambrósio J.

autor

Pombo J.

autor

Pereira M.

autor

Antunes P.

autor

Mósca A.

• IDMEC – Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Lisboa, Portugal,

Bibliografia

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