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Effect of random track irregularities on selected composite bridge / track structure / high-speed train system vibrations

Auteur(s):

Médium: article de revue
Langue(s): en 
Publié dans: Budownictwo i Architektura, , n. 1, v. 12
Page(s): 259-266
DOI: 10.35784/bud-arch.2207
Abstrait:

A theory of the quasi-exact physical and mathematical modelling of the composite (steel–concrete) bridge / ballasted track structure / high-speed train system (BTT) was developed, including viscoelastic suspensions of rail-vehicles on two-axle bogies, the non-linear Hertz contact stiffness and one-sided contact between the wheel sets and the rails, the viscoelastic and inertia features of the bridge, the viscoelastic track structure on and beyond the bridge, the approach slabs, and random track irregularities. Based on this theory, advanced computer algorithms for the BTT numerical modelling were written and a computer program to simulate the vertical vibrations of the BTT systems was developed. The bridge subject to the preliminary dynamic analysis and designed according to Polish standards has a 15.00 m span length. The bridge was loaded by the German ICE-3 high-speed train moving at the critical (180 and 270 km/h) and the maximum (300 km/h) operating speeds.

License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution - Partage dans les Mêmes Conditions 4.0 (CC-BY-SA 4.0) International. Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et que le partage se fait dans les mêmes conditions (license) que l'original. Un lien vers la license (ci-dessus) toit être inclus. Toute altération vis-à-vis de l'original doit être indiquée.

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  • Reference-ID
    10476137
  • Publié(e) le:
    25.11.2020
  • Modifié(e) le:
    25.11.2020