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Minimising Turbocharger Whoosh Noise for Diesel Powertrains
Technical Paper
2005-01-2485
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Diesel vehicle buyers in Europe are now able to select from a wide range of desirable products with excellent performance and levels of refinement competitive with gasoline engine products. However, the trend towards higher ratings and increased low speed torque appears to have resulted in increased levels of turbocharger generated flow or ‘whoosh’ noise.
This paper discusses the phenomenon of turbocharger whoosh and its impact on powertrain [1] and vehicle level NVH [2] focusing on:
- Possible mechanisms for whoosh noise occurrence
- The effect of turbocharger compressor selection on whoosh noise
- Mechanisms for the radiation of whoosh noise
- Potential countermeasures for reducing turbocharger whoosh
Case studies are drawn from a range of relevant powertrain NVH projects to illustrate the turbocharger whoosh noise development process.
The paper includes an insight to the future development of predictive tools for the whoosh noise phenomenon.
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Authors
Topic
Citation
Evans, D. and Ward, A., "Minimising Turbocharger Whoosh Noise for Diesel Powertrains," SAE Technical Paper 2005-01-2485, 2005, https://doi.org/10.4271/2005-01-2485.Also In
References
- Achieving Diesel Vehicle Appeal, Part 2: Powertrain NVH Perspective SAE 2005-01-2489 March Jason Bennett Colin Towalski Craig Ward Andrew
- Achieving Diesel Vehicle Appeal, Part 1: Vehicle NVH Perspective SAE 2005-01-2484 March Jason Strong Gareth Gregory Simon Rediers Benny
- Turbocharger Compressors - The Phenomenon of Surging Turbo Magazine I 1995 Schieman Johan
- Gas Dynamics Simulation For The Design Of Intake And Exhaust Systems - Latest Techniques SAE 951367 Wren C S Johnson O
- Introduction of Noise Reduction Examples in Turbocharger System of Diesel Engines FISITA, 2004, 30th Congress Kang-Young Soh Dong-Kyu Yoo Koo-Tae Kang