Study of the derailment safety index Y/Q of the low-floor tram bogies with different types of guidance of independently rotating wheels

• Autorzy: Opala M.
• Języki publikacji: EN

Abstrakty

EN

Modern tram designs use different conceptions of how to implement the low-floor functionality. The key construction part is the bogie running gear which has to accommodate the lower part of the tram body. To adjust the low-floor level, many low-floor tram bogies have different types of guidance of independently rotating wheels with no central axle between the two wheels. Lack of self-steering mechanism in the form of central axle coupling or an external guiding device creates several inherent problems, such as insufficient guiding and excessive wear. Another important context is the safety against derailment when the vehicle negotiates a curved track. In this study the dynamic behaviour of non-powered bogies with different types of guidance of independently rotating wheels are presented using computer simulation models. The simulation results of the Y/Q index are compared for the two track configurations (curved and tangent sections) and four different kinds of bogie running gear.

Słowa kluczowe

EN

derailment safety; safety; simulation; independently rotating wheels; low-floor tram

PL

wykolejenie; bezpieczeństwo; symulacja; niezależnie obracające się koła; tramwaj niskopodłogowy

• Wydawca: Warsaw University of Technology, Faculty of Transport
• Czasopismo: Archives of Transport
• Rocznik: 2016
• Tom: Vol. 38, iss. 2
• Strony: 39--47
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Opala M.

• Warsaw University of Technology, Faculty of Transport, Warsaw, Poland

Bibliografia

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• [8] T.X. MEI & R.M. GOODALL, 2003. Recent Development in Active Steering of Railway Vehicles. Vehicle System Dynamics, 39(6), pp.415-36.
• [9] TCRP, R., 2005. Flange Climb Derailment Criteria and Wheel/Rail Profile Management and Maintenance Guidelines for Transit Operations. Washington D.C.: Transportation Research Board.
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