The invention provides a method for optimizing crosswind stability of a high-speed train, which comprises the following steps of: arranging air bags on the side wall of a train body of the high-speed train, quickly inflating and opening the air bags on the leeward side of the train body when the high-speed train encounters crosswind during running, expanding the air bags to have oblate cross sections, and improving an airflow vortex structure on the leeward side of the train so as to reduce the transverse force of the high-speed train; meanwhile, aerodynamic lift of the high-speed train is increased through the airbags, and the upsetting moment of the high-speed train is finally reduced. The anti-overturning thought of a traditional high-speed train is broken through, a flow field structure of the leeward side of the train body is changed by rapidly forming an air bag mode with matched rigidity and flexibility, multi-stage regulation and control of pneumatic transverse force and lift force of the train are achieved, and the anti-overturning effect of the high-speed train is achieved.
本发明提供了一种高速列车横风稳定性的优化方法,在高速列车的车体侧壁布置气囊,当高速列车运行中遇到横风时,将车体背风侧的气囊快速充气打开,使气囊扩充为横截面呈扁圆形,改善列车背风侧气流涡结构以减小高速列车横向力,同时通过气囊增加高速列车气动升力,最终减少高速列车的倾覆力矩。本发明突破了传统高速列车抗倾覆思路,通过快速形成一种刚‑柔性能匹配的气囊方式,来改变车体背风侧流场结构,达到对列车气动横向力及升力的多级调控,实现高速列车抗倾覆效果。
Method and device for optimizing crosswind stability of high-speed train
一种高速列车横风稳定性的优化方法及装置
2023-06-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
Crosswind stability of a high-speed train on a high embankment
Tema Archiv | 2007
|Crosswind stability of a high-speed train on a high embankment
Online Contents | 2007
|Crosswind stability of a high-speed train on a high embankment
British Library Online Contents | 2007
|Crosswind stability of a high-speed train on a high embankment
SAGE Publications | 2007
|Crosswind stability analysis of a high-speed train based on fuzzy random reliability
Online Contents | 2015
|