Aero-Vibro-Acoustic Simulation Methodologies for Vehicle Wind Noise Reduction

Musser, Chadwyck T.; Calloni, Massimiliano; Golota, Anton; Zerbib, Nicolas

doi:10.4271/2019-26-0202

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…In addition, a silent interior environment for voice activation systems gains relevance. Musser et al 22 addressed the challenges of aero-vibro-acoustics (AVA) modeling and simulation for vehicle wind noise applications. They identified the types of computational fluid dynamics (CFD) analyses that are suitable for vehicle vibro-acoustic simulations to predict wind noise.…”

Section: Wind Noisementioning

confidence: 99%

Recent progress in battery electric vehicle noise, vibration, and harshness

2021

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As battery electric vehicle (BEV) market share grows so must our understanding of the noise, vibration, and harshness (NVH) phenomenon found inside the BEVs which makes this technological revolution possible. Similar to the conventional vehicle having encountered numerous NVH issues until today, BEV has to face many new and tough NVH issues. For example, conventional vehicles are powered by the internal combustion engine (ICE) which is the dominant noise source. The noises from other sources were generally masked by the combustion engine, thus the research focus was on the reduction of combustion engine while less attention was paid to noises from other sources. A BEV does not have ICE, automatic transmission, transfer case, fuel tank, air intake, or exhaust systems. In their place, there is more than enough space to accommodate the electric drive unit and battery pack. BEV is quieter without a combustion engine, however, the research on vehicle NVH is even more significant since the elimination of the combustion engine would expose many noise behaviors of BEV that were previously ignored but would now seem clearly audible and annoying. Researches have recently been conducted on the NVH of BEV mainly emphasis on the reduction of noise induced by powertrain, tire, wind and ancillary system and the improvement of sound quality. This review paper will focus on recent progress in BEV NVH research to advance the BEV systems in the future. It is a review for theoretical, computational, and experimental work conducted by both academia and industry in the past few years.

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Section: Wind Noisementioning

confidence: 99%

Recent progress in battery electric vehicle noise, vibration, and harshness

2021

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“…These wakes are formed in parts such as A-Pillar, B-Pillar, rear glass, automotive tail and side mirrors. The study of aerodynamic noise in these areas has been popular for researchers [62][63][64][65]. For example, Tsai et al [66] performed an aeroacoustics analysis on the rear spoiler (Fig 34) and investigated its role on aerodynamic and aeroacoustics of the whole vehicle.…”

Section: Aeroacoustics In Automobile Industrymentioning

confidence: 99%

Synergy between Noise Reduction Techniques Applied in Different Industries: A Review

2020

IJM

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This review aims to assist aerodynamic noise in three industrial fields: Aerospace, Turbomachinery and Automotive. In this review the general terms in aeroacoustics is defined; and aerodynamic noise sources are recognized. The paper also reviews the brief literature on noise reduction techniques, with a particular focus on the state of the art numerical and experimental works. In Addition, developments in low speed designs for aerodynamic noise reduction, some passive and active methods for example serrated boundaries, porous media, noise absorber, and etc. are discussed. By investigating similarities in noise reduction techniques between these industries, this paper offers an outlook for noise reduction techniques in future.

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Aero-Vibro-Acoustic Simulation Methodologies for Vehicle Wind Noise Reduction

Cited by 2 publications

References 4 publications

Recent progress in battery electric vehicle noise, vibration, and harshness

Recent progress in battery electric vehicle noise, vibration, and harshness

Synergy between Noise Reduction Techniques Applied in Different Industries: A Review

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