ABSTRACT

The decision to design and build the ICExperimental was an important step for the realization of high speed railway traffic in the Federal Republic of Germany. During test runs, the ICE reached a maximum running speed of 345 km/h with the original design parameters. New components of the train were tested whereby special consideration was given to an improved bogie concept. Measuring of relative displacements, absolute accelerations and wheelset forces are substantially contributing to a further reduction of loads acting on both vehicle and track and, as a consequence thereof, to optimize the traction system for high speed operation. The dynamic behaviour is analysed by linear and non-linear computations and compared to measurements with respect to stability and random response. Due to the refinement of the computation methods, a higher degree of consistency with test results of the leading wheelset in a bogie is now achieved. Aiming at improving the calculations with the multibody-dynamics programme MEDYNA to the largest possible extent, pre- and post processing, designated EUCMED, is embodied in a CAD system.