A calculation method based on STAR-CCM+and ABQUS data exchange technology was used to analyze the fluid-structure coupling of a high-speed train pantograph under the aerodynamic disturbance.The flow field calculation results were compared with the wind tunnel test results to verify the accuracy of the simulation calculation results.This paper analyzed the pressure distribution characteristics of the flow field around the pantograph,the deformation of the coupling components,and the equivalent stress parameters during the operation of the train on the open track.The calculation results indicate that the pressure difference resistance of the bow head is an important component of aerodynamic resistance.The connection position between the bow head and the upper arm rod has the maximum vertical displacement,reaching upto 99.35 mm.The average vertical deformation displacement of the bow head is expected to reach about 60 mm.The maximum stress of the upper frame weld can reach 25.71 MPa,and the allowable stress and safety threshold of the weld meet the standard requirements.The calculation results provide important guidance for the optimization design of high-speed train pantographs in real scenarios.
关键词
高速列车/受电弓/流场分布/变形量/应力分析/数值模拟
Key words
high-speed train/pantograph/flow field distribution/deformation/stress analysis/numerical simulation
万方数据