Owing to the continuous development of the automobile industry, increasingly stringent performance requirements for noise, vibration, and harshness of automobiles are being presented. Interior noise control in high-speed vehicles has not been adequately addressed, owing to the complex mechanism of noise generation. As simulations performed previously focused on vehicle wind noise and tyre noise cannot adequately predict the effect on passenger ear-side noise, these issues are investigated in this study. Their effects on passengers are investigated using transfer path analysis. An anti-noise operational transfer path analysis is proposed to study noise generated in high-speed vehicles. The established anti-noise operational transfer path analysis model can eliminate crosstalks between noise source signals of different transmission paths. The model is validated by comparing the measured and calculated values of the anti-noise operational transfer path analysis model. The coherence of the input noise signal and the ear-side noise signal of the passenger is assessed using coherence analysis. By calculating and categorising the contributions of different noise sources in different locations and types, the main noise sources affecting passenger comfort are determined. The result indicates that the main noise sources affecting the passenger’s ear-side noise change from engine noise to left-A wind noise and tyre radiation noise with increasing vehicle speed, in which the proportion also increase. The proposed anti-noise operational transfer path analysis is suitable for the interior-noise analysis of high-speed vehicles, and this study may serve as a reference for future studies regarding active and passive noise control in high-speed vehicles.

中文翻译：

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基于抗噪声运行传递路径分析的高速车辆车内噪声产生机制

随着汽车工业的不断发展，对汽车的噪声、振动和声振粗糙度提出了越来越严格的性能要求。由于噪声产生的复杂机制，高速车辆的内部噪声控制尚未得到充分解决。由于之前针对车辆风噪声和轮胎噪声进行的模拟无法充分预测对乘客耳侧噪声的影响，因此本研究对这些问题进行了调查。使用转移路径分析来研究它们对乘客的影响。提出了一种抗噪声操作传递路径分析来研究高速车辆中产生的噪声。建立的抗噪声操作传输路径分析模型可以消除不同传输路径的噪声源信号之间的串扰。通过比较抗噪声操作传递路径分析模型的测量值和计算值来验证该模型。输入噪声信号和乘客耳侧噪声信号的相干性使用相干性分析进行评估。通过计算和分类不同位置和类型的不同噪声源的贡献，确定影响乘客舒适度的主要噪声源。结果表明，随着车速的增加，影响乘员耳侧噪声的主要噪声源从发动机噪声变为左A风噪声和轮胎辐射噪声，其中所占比例也增加。所提出的抗噪声操作传递路径分析适用于高速车辆的内部噪声分析，