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为了提高FD-09风洞的试验风速,在其试验段内设计安装了一套收缩型二元试验段插件;建立了宽3m、高2m的水平二元试验段;通过风速校测试验分析了二元试验段的最大风速、静压等性能。结果表明:空风洞最大风速由100m/s提高到了115m/s,并与理论计算结果吻合较好,两者相差仅约0.2m/s,说明插件的设计是成功的;二元试验段风速提高时,试验段洞壁也将受到非常大的外压,风速为115m/s时试验段洞壁承受4.8kPa外压,这将会影响试验段洞壁的结构安全,因此设计时需要考虑试验段洞壁的结构强度;此外,将插件成功应用于高速列车受电弓等风洞试验,扩展了FD-09风洞的高风速试验能力。
In order to improve the test wind speed of FD-09 wind tunnel, a set of shrinkage-type binary test section plug-in was designed and installed in its experimental section. A horizontal dual test section of width 3m and height 2m was established. Through wind speed test, Binary test section of the maximum wind speed, static pressure and other properties. The results show that the maximum wind speed of the wind tunnel increases from 100m / s to 115m / s, which is in good agreement with the theoretical calculation. The difference between them is only about 0.2m / s, which shows that the design of plug-in is successful. When the wind speed is 115m / s, the wall of the test section will bear an external pressure of 4.8kPa, which will affect the structural safety of the wall of the test section. Therefore, the design needs to consider the test In addition, the plug-in successfully applied to high-speed train pantograph wind tunnel test, extending the FD-09 wind tunnel high wind speed test capability.