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1 April 2024 Research on aerodynamic noise reduction of automobile front cover based on a simplified fluid model simulation method
Changyuan Xu, Jianfu Chen, Gang Sun, Guohui Deng, Jun Wang, Xin Chen, Zhiguo Liu
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Proceedings Volume 13082, Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023); 1308221 (2024) https://doi.org/10.1117/12.3026456
Event: 2023 4th International Conference on Mechanical Engineering, Intelligent Manufacturing and Automation Technology (MEMAT 2023), 2023, Guilin, China
Abstract
This study focuses on a certain vehicle model and analyzes the noise problem in the edge area of the front cover of the car through wind tunnel tests and Fluent numerical simulation software. Firstly, numerical calculations and analysis were conducted using fluid dynamics theory, acoustic theory, and other methods. Secondly, wind tunnel validation was conducted to analyze the impact mechanism of aerodynamic flow field on the noise of the front cover of automobiles. By comparing the simulation results of different design schemes, a simplified model was used to solve a type of method and solution for eliminating the edge noise of the front cover. Explored the mechanism of reducing noise at the front edge of the front cover of vehicles with through grille lights, studied the structure and position of the front grille light area, and applied it to eliminate wind noise in vehicle models. The simulation and experimental results show that the protruding diversion structure passing through the tail lights can effectively avoid the generation of wind noise at the front of the front cover, reduce the sound pressure value at the front cover, and reduce the noise to a maximum of 19 dB.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Changyuan Xu, Jianfu Chen, Gang Sun, Guohui Deng, Jun Wang, Xin Chen, and Zhiguo Liu "Research on aerodynamic noise reduction of automobile front cover based on a simplified fluid model simulation method", Proc. SPIE 13082, Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023), 1308221 (1 April 2024); https://doi.org/10.1117/12.3026456
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KEYWORDS
Aerodynamics
Acoustics
Wind measurement
Performance modeling
Prototyping
Denoising
Design
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