铁路防风栅抗风性能风洞试验研究与分析

防风栅可降低铁道车辆在横风作用下铁道车辆所受的气动力,其抗风性能受许多因素影响。针对这一问题,根据日本对防风栅、车辆、线路等组合进行一系列风洞模型试验,以及得到的试验数据,分普通型防风栅与新型防风栅情况,对防风栅降低铁道车辆所受气动侧向力的抗风性能的主要影响因素,以及防风栅实际应用情况等进行分析和讨论,最后根据国内对防风栅研究与应用的现状提出相关建议。

Wind-tunnel test investigations and analysis on wind break performances of wind fences on railway

Wind fences can reduce aerodynamic force of railway vehicle in the cross-winds,and the performances of wind fences might be affected by many factors.In view of the problem,based on a series of test data of wind-tunnel test done in Japan about the combination,such as wind fences,vehicle and line etc,under the condition of general type and closedown type of wind fences,the problems,the main factors influencing the performances of wind fences was analyzed and discussed to reduce side force of railway vehicle in the cross-winds and the practical application condition of the fences.Finally,the corresponding suggestion was made according to the actual situation of the fences in China.