考虑风载的高速列车受电弓静强度分析

铁路高速化在带来方便快捷运输条件的同时,也使列车及其相关结构所受的空气阻力急剧增大,为保证受电弓的安全运行,有必要开展气动载荷作用下的受电弓静强度分析。基于ANSYS Workbench的静强度分析功能,现对气动载荷作用下的受电弓静强度分析方法进行了探索,分析了气动载荷的影响效果,并实现了气动力作用下V500高速受电弓的静强度校核。结果表明,V500高速受电弓弓头在气动力作用下呈抬升趋势,该型弓具有良好的气动性能;对比开、闭口运行工况下的结构承载分布情况和部件应力,V500高速受电弓闭口运行性能略优于开口运行性能;受电弓平衡臂、弹簧盒、上臂杆和底架的应力主要由气动载荷引起;V500高速受电弓各部件均通过强度校核,满足静强度设计要求。

Static Strength Analysis of High Speed Pantograph Considering Aerodynamic Load

High-speed railway brings the convenient transportation conditions, but also increases air resistance of train and its related parts. In order or to ensure the safety of pantograph during operation, the static strength analysis of pantograph is necessary. Base on ANSYS Workbench, the method of static strength analysis considering aerodynamic load was exploded in this paper. The effect of aero- dynamic load was analyzed. And the static intension check of VS00 high speed pantograph was carried out. Conclusions were draw as follows： Collector head had an upward trend under aerodynamic load, which meant V500 high speed pantograph had a good aerodynamic performance. Comparing the distribution of bearing and stress of components under the open and closed running conditions, the operation performance of VS00 high speed pantograph under closed running condition was better than the open running condition. The stress of balance-arm, spring-box, upper arm and base-frame was produced by aerodynamic load. The components of VS00 high speed pantograph met the static strength design requirements.