基于Pellicular分析的流动室内噪声实验与数值研究

IF 0.8 4区工程技术 Q4 ACOUSTICS

International Journal of Acoustics and Vibration Pub Date : 2021-03-30 DOI:10.20855/IJAV.2020.25.11677

Pan Zuofeng, Hou Hangsheng, Lu Wenbo, Jiang Changwei, Du Mintao, Y. Xiang, B. Changan

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引用次数: 1

摘要

后视镜和A柱引起的湍流是车内风噪声的主要来源。由于声学和湍流压力在能量和传递效率上的差异，在研究室内风噪声时，准确识别窗户表面的两种压力非常重要。将波数分解（WND）和珀耳模分解（PMD）成功地应用于对窗口压力的分解。此外，利用薄膜分析计算的传递函数对室内风噪声进行了计算，并与有限元法计算的结果和实验测量结果进行了比较。结果表明，采用薄膜分析法计算的室内风噪声与有限元计算结果基本一致，在计算效率上具有明显优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Experimental and Numerical Investigation on the Flow-Induced Interior Noise Based on Pellicular Analysis

Turbulence caused by the rearview mirror and A-pillar is the main source of interior wind noise. Because of the difference in energy and transfer efficiency of acoustic and turbulent pressure, it is important to accurately identify the two kinds of pressure on the window surface when studying interior wind noise. Wave Number Decomposition (WND) and Pellicular Mode Decomposition (PMD) are successfully applied to decompose the pressure on the window. Furthermore, the transfer function calculated by pellicular analysis is used to calculate the interior wind noise, and the result is compared with the result calculated by the Finite Element Method (FEM) and measured by the experiment. The results revealed that the interior wind noise calculated by the pellicular analysis method is almost the same as the result calculated by the FEM, and that it presents obvious advantages in computational efficiency.

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来源期刊

International Journal of Acoustics and Vibration ACOUSTICS-ENGINEERING, MECHANICAL

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

12 months

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