Control oriented formulation for structures interacting with moving loads

Addresses the control-oriented formulation of structures interacting thorough moving contact points. The example used for illustration is the dynamic interaction of moving vehicles and bridge structures. Such systems are time-varying due to the moving vehicles. The system representation can be partitioned into a time-invariant part (the bridge and vehicle dynamics) and a time-varying part (the moving contact points). Such a systems approach facilitates modularized analytical model development, analysis, simulation and control system design. A block diagram-based simulation with integral causality is presented in order to demonstrate the utility of this approach for a parametric investigation of the system dynamics. Further, it is shown that a such problem can be put into the linear parameter-varying (LPV) standard feedback form to exploit the available theoretical and numerical tools