Dynamics of a high-speed rail vehicle negotiating curves at unsteady crosswind

• Rail vehicles in everyday operation experience large lateral influences from curves and track imperfections, yielding large suspension deflections and displacements of the carbody relative to the track. Aerodynamic loads caused by crosswind may deteriorate the conditions that can result in vehicle overturning. This study investigates the influence of crosswind on a highspeed rail vehicle negotiating a curve. A multi-body simulation model of a high-speed rail vehicle is subjected to unsteady aerodynamic loads. The vehicle response is studied for different gusts, and variations of some vehicle parameters are performed.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Farkostteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)

Nyckelord

Rail vehicle dynamics

crosswind stability

overturning risk

unsteady aerodynamics

multibody simulations

CFD

computational fluid dynamics

Vehicle engineering

Farkostteknik

Järnvägsgruppen - Fordonsteknik

Järnvägsgruppen - Fordonsteknik

Publikations- och innehållstyp

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