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使用线性回归和修改的精神声学烦扰方法对飞机机噪声的不适度估计
Yu Huang1, Bingcong Lv1, Ke Ni1
1Institute of Vibration, Shock and Noise, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
The Journal of the Acoustical Society of America
|October 2, 2023
概括
飞机机噪声会引起不适,特别是在中间部分. 一个新的多重属性模型比现有的精神声学烦模型更好地预测这种不适.
科学领域:
- 声学 声学 在声学方面
- 精神声学是一种精神声学.
- 人类因素工程 人类因素工程
背景情况:
- 音响舒适度对于飞机机设计至关重要.
- 现有的噪音引起的不适模型需要改进,以便在实践中应用.
研究的目的:
- 为了研究大型客机客中的声学不适.
- 开发和验证一种用于预测噪音引起的不适的新模型.
- 将新模型的性能与已建立的精神声学烦模型进行比较.
主要方法:
- 在巡航航班期间,两架大型客机在21个地点进行噪声测量.
- 42个噪音刺激 (7281 dB(A)) 被呈现给24名参与者,以使用绝对大小估计来评估不适度.
- 开发了一个多重属性 (MA) 不适模型,使用噪音,清晰度和粗度作为预测因素.
主要成果:
- 与前部或后部相比,中部客部分的噪音不适明显高 (10%点).
- 不适主要是由大声驱动的,粗和度也发挥了影响.
- 开发的MA模型显示,与Zwicker,More和Di模型相比,对噪音不适的估计准确度更高.
结论:
- 该MA模型提供了更准确的预测飞机机噪声引起的不适.
- 用实验结果修改现有的精神声学烦模型显著改善了它们与测量不适的相关性.
- 这些发现为提高飞机机设计中的声学舒适性提供了宝贵的见解.
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