A Method to Measure and Model Acoustic Emissions of Multicopters.

A Method to Measure and Model Acoustic Emissions of Multicopters.
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DOI:
10.3390/ijerph20010096
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发表时间:
2022-12-21
影响因子:
--
通讯作者:
Heutschi, Kurt
Heutschi, Kurt
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wunderli, Jean Marc;Meister, Jonas;Boolakee, Oliver;Heutschi, Kurt

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人们对无人驾驶航空器的商业应用越来越感兴趣,但缺乏评估的重要基础,其中包括噪音。这方面的贡献特别侧重于一种方法来测量和建模的多旋翼机的声辐射。因此,排放预测基于使用多元回归方法的测量。一个重要的发现是,方向性模式是广泛的独立的旋转速度的转子和飞行程序。因此,可以确定静止悬停飞行的方向性图案,这大大简化了测量过程。除了旋转速度相关的声音发射模型悬停飞行,一个多翼特定的校正项,需要考虑向前飞行。基于三种不同多旋翼模型的实测数据,验证了该方法的有效性。
There is a growing interest for commercial applications of Unmanned Aerial Vehicles, but important foundations for an assessment, among others about noise, are missing. This contribution specifically focuses on a method to measure and model the sound radiation of multicopters. The emission prediction is hereby based on measurements using a multiple regression approach. An important finding is that the directivity pattern is widely independent of the rotational speed of the rotors and of the flight procedure. Consequently, the directivity pattern can be determined for a stationary hover flight, which considerably simplifies the measurement procedure. In addition to a rotational speed-dependent sound emission model for hover flight, a multicopter-specific correction term is required to account for forward flight. The validity of this approach is demonstrated based on the field measurements of three different multicopter models.
DOI: 10.3390/ijerph18115940
发表时间: 2021-06-01
影响因子: --
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