An Optimized Design of Multi-Chamber Perforated Resonators to Attenuate Turbocharged Intake System Noise

2021-01-0669

04/06/2021

Features
Event
SAE WCX Digital Summit
Authors Abstract
Content
The turbocharger air intake noise during transient conditions like wide open throttle and tip-in/out affects the passenger ride comfort. This paper aims to study an optimized design of multi-chamber perforated resonators to attenuate this noise. The noise produced by a turbocharger in a test vehicle has been measured to find out the noise spectral characteristics which can be used to design the acoustic targets including the amplitude and frequency range of transmission loss (TL). The structural parameters of the resonators are optimized based on genetic algorithm (GA) and two-dimensional prediction theory of the resonator TL. The optimized resonators are installed on the test vehicle to verify the actual noise reduction effect. The results suggest that the broadband noise has been eliminated, and subjective feelings are greatly improved.
Meta TagsDetails
DOI
https://doi.org/10.4271/2021-01-0669
Pages
7
Citation
Guo, R., and Luo, R., "An Optimized Design of Multi-Chamber Perforated Resonators to Attenuate Turbocharged Intake System Noise," SAE Technical Paper 2021-01-0669, 2021, https://doi.org/10.4271/2021-01-0669.
Additional Details
Publisher
Published
Apr 6, 2021
Product Code
2021-01-0669
Content Type
Technical Paper
Language
English