Measurement of noise and its correlation to performance and geometry of small aircraft propellers
Measurement of noise and its correlation to performance and geometry of small aircraft propellers
复制标题
小型飞机螺旋桨的噪声测量及其与性能和几何形状的相关性
DOI：
10.1051/epjconf/201611402112
复制
发表时间：
2016
影响因子：
4.7
通讯作者：
Jakub Suchý
中科院分区：
文献类型：
--
作者：
Vít Štorch;J. Nozicka;M. Brada;Jiří Gemperle;Jakub Suchý
对一组小型模型和无人机螺旋桨在静态条件下的气动性能和声学噪声进行了测试。除了噪声与叶尖速度和螺旋桨直径有明显的相关性外，还考虑了桨距、桨距分布、效率和桨叶形状对噪声的影响。利用测量的性能数据，对螺旋桨气动噪声计算模型进行了验证。所选螺旋桨的范围既包括为接近静止状态设计的螺旋桨，也包括在高度非设计状态下运行的螺旋桨，这允许调查叶片失速对噪声水平和性能结果的影响。
A set of small model and UAV propellers is measured both in terms of aerodynamic performance and acoustic noise under static conditions. Apart from obvious correlation of noise to tip speed and propeller diameter the influence of blade pitch, blade pitch distribution, efficiency and shape of the blade is sought. Using the measured performance data a computational model for calculation of aerodynamic noise of propellers will be validated. The range of selected propellers include both propellers designed for nearly static conditions and propellers that are running at highly offdesign conditions, which allows to investigate i.e. the effect of blade stall on both noise level and performance results.