Assessment of vertical track geometry quality based on simulations of dynamic track-vehicle interaction

• A study assessing vertical track geometry quality based on simulations of dynamic track-vehicle interaction is presented in this article. The dynamic model is composed of track, vehicle, and wheel-rail contact with moving irregularities and is solved in the frequency domain by fast Fourier transform or in the time domain by constructing a filter function based on system identification. Frequency-dependent stiffness and loss factor of railpads are used in this study. Numerical simulations are carried out for a 120 km long track to demonstrate the potential benefits of enhancing track quality assessment by calculating wheel-rail forces.

Ämnesord

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

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

Nyckelord

track-vehicle dynamic interaction

track geometry

Vehicle engineering

Farkostteknik

Järnvägsgruppen - Effektiva tågsystem för persontrafik

Järnvägsgruppen - Effektiva tågsystem för persontrafik

Publikations- och innehållstyp

ref (ämneskategori)

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