Vertical dynamic response of high-speed rails during sudden deceleration. (English) Zbl 1404.74119
Summary: In this paper, a computational study using the moving element method is carried out to investigate the dynamic response of a high-speed rail (HSR) experiencing sudden braking. The train is modeled as a 10-DOF system of interconnected spring-damping units. The Hertz contact theory is employed to account for the nonlinear contact force between the wheel and rail. The railway track is treated as an Euler-Bernoulli beam resting on a two-parameter elastic damped foundation. The effects of wheel sliding, initial train deceleration, initial train speed and the severity of railhead roughness on the dynamic response of the HSR are investigated.
MSC:
| 74M10 | Friction in solid mechanics |
| 65L10 | Numerical solution of boundary value problems involving ordinary differential equations |
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