Simulation Of Temperature Field In Sliding Contact Zone Of Pantograph Catenary System

Temperature has a very important effect on the material properties and stability of the pantograph catenary system. High temperature can affect the friction coefficient of the material and cause the wear of the system.. Arc produced at the moment of high temperature, to burn the wire, which change the physical and chemical properties of the surface contact, the short-circuit current of the moment of the pantograph and catenary system, and even to achieve wire melting point, the occurrence of disconnection phenomenon. So the temperature field of the pantograph catenary system is very important for the influence of temperature variation..According to the characteristics of the pantograph catenary system, the arc electromagnetic noise simulation experiment platform is designed, and the sliding contact experiment is carried out.. Using COMSOL simulation software to simulation of the pantograph catenary system, the establishment of three-dimensional finite element model, through the combination of experiment and simulation study found that changing the current, pressure, speed of slide contact point temperature changes. The simulation shows that the thermal conductivity and resistivity of the materials will affect the temperature rise of the contact points.. When the system is short-circuit, the sudden increase of the electric current will cause the sudden increase of temperature, which will affect the stability of the pantograph system.