Fan-Blade-out Experiment at Small Scale
Fan-Blade-out Experiment at Small Scale
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小规模扇叶实验
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Xinran Xiao
中科院分区：
文献类型：
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作者：
Andy Vanderklok;Andy Stamm;Xinran Xiao
本文介绍了一种低成本、小型旋压装置。该装置位于直径为203 mm（8英寸）的钢制真空室中，由3HP变速直流电动机提供动力。该小型试验台是为了测试高速旋转系统的实验过程和数据采集技术，并研究其动态特性而开发的。利用该实验台进行了风机叶片脱落（FBO）实验。研究了缺口叶片的释放机理。考虑到缺口集中系数，修正了缺口深度与释放速度的关系。预测的释放速度与实验数据相当吻合。提出了一种简单的线触发数据采集方法。在FBO事件期间获得同步的高速视频图像和传感器信号。所观察到的现象与使用较大的旋转装置报道的现象相似。
This paper describes a low cost, small scale spin rig. The rig is housed in a steel vacuum chamber of 203 mm (8 in) diameter and powered by a 3HP variable speed DC electric motor. The small rig was developed to test the experimental procedure and data acquisition techniques and to investigate the dynamic characteristics of a high speed rotating system. Using this rig, fan-blade-out (FBO) experiments were carried out. The notched blade releasing mechanism was investigated. The relationship between the notch depth and the release speed was modified with the consideration of the notch concentration factor. The predicted release speed agreed reasonably well with the experimental data. A simple wire trigger method for data acquisition was developed. Synchronized high speed video images and sensor signals during FBO events were obtained. The observed phenomena were similar to those reported using larger spin rigs.