Analysis of Influence of Installation Mode on Deformation Characteristics of Cable Terminal on Roof of High Speed Train
The stress concentration at the root of the shed of cable terminal on the roof of high speed train may in-duce defects between the terminal interfaces.The existence of the interface defects will distort the electric field distri-bution and,in severe cases,will cause the cable terminal to burst.A fluid-structure calculation model is set up to simulate and analyze the influence of wind direction,installation mode and installation inclination angle on the defor-mation characteristics of the cable terminal shed,and the optimization measures to improve the stress and deforma-tion are proposed.The simulation results show that both installation mode and wind speed affect the deformation of the cable terminal shed edge and the stress at the root of the shed.Under the same wind speed and when installed lon-gitudinally,the deformation of the cable terminal shed in longitudinal installation is maximum.While,in horizontal installation mode,the influence of the installation inclination angle on the deformation and stress of the shed is not ob-vious.In the longitudinal installation mode,the installation inclination angle is in the range of 15°-25°,the maximum stress variation at the root of the shed is more obvious.Appropriately increasing the material hardness of the shed and installing a shroud on the roof of the train can reduce the deformation of the shed.The results in this paper can pro-vide a reference for the installation method and structure optimization of the cable terminal on top of the train.
cable terminal of high-speed trainliquid-solid couplingdeformation characteristicsinstallation mode
万方数据
维普
