An element for analysing vehicle-bridge systems considering vehicle’s pitching effect. (English) Zbl 0964.70004

Yang, Yeong-Bin; Chang, Chia-Hung; Yau, Jong-Dar

Int. J. Numer. Methods Eng. 46, No. 7, 1031-1047 (1999).

The authors consider the problem of a train of vehicles passing over a bridge, and discuss the vehicle-bridge interaction. (VBI). They write down the mechanical equations governing the interaction, taking account of track irregularities, and obtain equivalent stiffness equations by using Newmark’s discretization scheme. The authors note that the vehicle loads only transmit through the nodal points of the VBI elements, and consider as an illustration a simple beam travelled over by a two-axle vehicle. The usefulness of two non-dimensional parameters, the impact factor and the speed parameter, is indicated. Finally, the authors consider a five-car system, and study the effect of track irregularities. The results of the analyses are presented graphically.

Reviewer: Ll.G.Chambers (Bangor)

MSC:

70-08	Computational methods for problems pertaining to mechanics of particles and systems
70E55	Dynamics of multibody systems
65L60	Finite element, Rayleigh-Ritz, Galerkin and collocation methods for ordinary differential equations

Keywords:

vehicle-bridge interaction; track irregularities; equivalent stiffness equations; Newmark’s discretization scheme; beam; two-axle vehicle; impact factor; speed parameter; five-car system

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