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增压汽油发动机高频噪声试验研究
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摘要
涡轮增压汽油发动机所产生的高频噪声会降低车内声学品质。本文通过3D建模设计了一个多孔消声器,用于消除涡轮增压汽油机所产生的高频噪声,并利用仿真确定了高频谐振腔的布置位置,最后通过实验验证了该消声结构能够有效降低高频噪声。研究过程为解决增压发动机进气噪声问题提高了参考依据。
The high-frequency noise created by turbocharged gasoline engine lower the interior acoustics quality.A multi-hole resonator model has been created by 3D software,aiming to lower the high-frequency noise.The layout of the resonator on the air intake system has been defined through simulation.The resonator performance has been validated by experiment.Research process provides a reference to solve the high-frequency noise in a turbocharged gasoline engine.
引文
[1]D.Evans,A.Ward.Minimizing turbocharger whoosh noise for diesel powertrains[J].SAE International,2005-(01):2485.
    [2]Hans Rammal,Mats Abom.Acoustics of turbochargers[J].SAE International,2007(01):2205.
    [3]Vivek Kolhe,K.Veeramani.Optimization of an air intake system to reduce multiple whoosh noises from an engine[J].SAE International.2013(01)1714.
    [4]Xiaohong Kuang,Jian Pang.Surge noise identification and control of automotive turbochargers[J],SAE International,2014(01):2053.
    [5]Xiaozhen Sheng,Shouhui Huang.An Initial analysis on sound insulation behavior of a rubber pipe between turbocharger compressor outlet and intercooler[J].SAE International,2014(01):0011.

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