Journal of Theoretical
and Applied Mechanics
40, 3, pp. 533-547, Warsaw 2002
and Applied Mechanics
40, 3, pp. 533-547, Warsaw 2002
Bridges with adaptive railway track
The concept of an adaptive railway track, consisting of sleepers initially elevated (with the curvature tailored according to the detected, coming train) and then yielding in a controlled way under the moving vehicle is discussed. The problem formulated as a shape control requiring the minimum integral measure of the track deflection gives, as a side effect, a significant reduction of the corresponding integral measure of the dynamic contact forces between the track and wheels.
Keywords: adaptive bridges; shape control; dynamic analysis