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中文摘要：
针对动车组在重载和高速条件下弓网滑动电接触频发引起的离线电弧现象,以高速铁路离线电弧作用下的动车组车顶弓线温度场为研究对象。首先利用非线性有限元理论,借助ANSYS强大的功能,建立受电弓弓头滑板和接触线的有限元模型;然后分析电弧产生后对温度分布的影响;其次给出不同环境条件、不同材料、不同材料配副时的弓线温度分布仿真结果,最后,通过不同仿真对比,充分验证了模型的正确性,得出最优的材料配副选择,给出降低电弧对弓网侵害的措施。
英文摘要：
Based on the heavy- load and high- speed condition of EMU,pantograph- catenary sliding electrical contact will lead to offline arc frequently. Aiming at this problem,this paper takes the vehicle roof Pantograph-catenary temperature field of EMU at the role of high-speed railway off-line arc as research object. Firstly,this paper built the finite element model of pantograph head＇s slide plate and contact line by utilizing nonlinear finite element theory and having the aid of ANSYS＇powerful function. Then,the influence of offline arc on thermal distribution was analyzed on this basis,and pantograph-catenary temperature distributional simulation results in the case of different environmental conditions,different materials and different materials were abtained. At last,the correctness of model was fully proved through different simulated comparison. The optimal material＇s matching selection and actions of weakening arc＇s infringement on pantograph-catenary were discussed subsequently.
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