The remainder of this paper is organized as follows: after a description of the railway vehicle and the concept of the active control scheme, some remarks on the FE model and
the mathematical transformation into modal form are given.
The analytical modeling of the transfer functions necessary for controller design is presented. Since the FE model always differs from the real vehicle regarding eigenfrequencies and modes, an identification procedure is outlined in the following section.
The optimal placement of actuators and sensors is addressed, a short background on robust control design is given, and the controller design is presented. The robustness of the controller is analyzed and the feasibility of the piezo-stack actuator is experimentally
validated.
The resulting performance is demonstrated both in a scaled laboratory experiment and in an extensive co-simulation.
The paper is concluded by a discussion of the proposed concept and an outlook on future work.