Influence of the Aerodynamic Forces on the Pantograph-Catenary System for High Speed Trains

摘要: Most of the high-speed trains in operation today have electrical power supply delivered through pantograph-catenary system. The understanding dynamics this system is fundamental since it contributes to decrease number incidents related these components, reduce maintenance and improve interoperability. From mechanical point view, most important feature consists quality contact between wire catenary strips pantograph. represented by a finite element model, whereas pantograph described detailed multibody analysed two independent codes co-simulation environment. A computational procedure ensuring efficient communication codes, shared computer memory, suitable force models were developed. presented here are contributions for identification dynamic behaviour interaction phenomena due action aerodynamics forces. wind forces applied on distributing them mesh. Since formulation does not include explicitly geometric information bodies, field each body as time-dependent nonlinear external These can be characterised either using fluid or experimental testing tunnel. proposed methodologies demonstrated application real scenarios trains, with purpose defining service limitations based train speed combination.