Psychoacoustic modelling of rotor noise.
Psychoacoustic modelling of rotor noise.
复制标题
转子噪声的心理声学建模。
DOI：
10.1121/10.0009801
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
P. Chaitanya
中科院分区：
文献类型：
--
作者：
Antonio J. Torija;Zhengguang Li;P. Chaitanya
航空部门正在迅速发展，有更多的电力推进系统和各种垂直起飞和降落的载人和无人驾驶航空器的新技术。社区噪音影响是更广泛采用这些新车辆的主要障碍之一。在感知驱动的工程方法的框架内，本文研究了转子系统中的声品质和一阶物理参数之间的关系，以帮助设计。三个案例研究被认为是：（一）对转与单转子系统，（二）在对转和单转子系统中的叶片直径和推力的变化，以及（三）对转系统中转子-转子轴向间距的变化。听力实验的结果，参与者评估了一系列的声音刺激与不同的设计参数，可以更好地了解转子噪声引起的烦恼。除此之外，还制定了针对转子噪声优化的心理声学烦恼模型。该模型包括一个新的心理声学功能来解释冲动的感知效果。所提出的模型的意义在于量化的心理声学因素，如作为主导因素的响度，也音调，高频内容，时间波动，和冲动对转子噪声烦恼的影响。
The aviation sector is rapidly evolving with more electric propulsion systems and a variety of new technologies of vertical take-off and landing manned and unmanned aerial vehicles. Community noise impact is one of the main barriers for the wider adoption of these new vehicles. Within the framework of a perception-driven engineering approach, this paper investigates the relationship between sound quality and first order physical parameters in rotor systems to aid design. Three case studies are considered: (i) contra-rotating versus single rotor systems, (ii) varying blade diameter and thrust in both contra-rotating and single rotor systems, and (iii) varying rotor-rotor axial spacing in contra-rotating systems. The outcomes of a listening experiment, where participants assessed a series of sound stimuli with varying design parameters, allow a better understanding of the annoyance induced by rotor noise. Further to this, a psychoacoustic annoyance model optimised for rotor noise has been formulated. The model includes a novel psychoacoustic function to account for the perceptual effect of impulsiveness. The significance of the proposed model lies in the quantification of the effects of psychoacoustic factors, such as loudness as the dominant factor, and also tonality, high frequency content, temporal fluctuations, and impulsiveness on rotor noise annoyance.