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Investigations of automotive turbocharger acoustics
KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx). KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).ORCID iD: 0000-0001-7898-8643
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).ORCID iD: 0000-0002-8474-8563
2011 (English)In: SAE technical paper series, ISSN 0148-7191Article in journal (Refereed) Published
Abstract [en]

In this paper an overview of recent experimental studies performed at KTH on the sound transmission and sound generation in turbochargers is presented. The compressor and turbine of the turbochargers are treated as acoustic active 2-ports and characterized using the unique experimental test facility established at KTH. The 2-port model is limited to the plane wave range so for higher frequencies the propagating acoustic power is estimated using an average based on pressure cross-spectra. A number of automotive turbochargers have been studied for a variety of operating conditions systematically selected from the compressor and turbine charts. The paper discusses the experimental procedures including special techniques implemented to improve the quality of the data. Results from a number of experiments on various modern automotive turbochargers including a unit with variable turbine geometry (VTG) are presented. Copyright 

Place, publisher, year, edition, pages
SAE International , 2011.
Keywords [en]
Acoustic wave propagation, Architectural acoustics, Automobile engines, Turbines, Acoustic power, Automotive turbochargers, Experimental procedure, Experimental test, Higher frequencies, Operating condition, Sound generation, Sound transmission, Superchargers
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-261564Scopus ID: 2-s2.0-85072487415OAI: oai:DiVA.org:kth-261564DiVA, id: diva2:1358753
Conference
11 September 2011 through 15 September 2011, Naples
Note

QC 20191008

Available from: 2019-10-08 Created: 2019-10-08 Last updated: 2019-10-08Bibliographically approved

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Åbom, MatsBodén, Hans

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Tiikoja, H.Rämmal, H.Åbom, MatsBodén, Hans
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Competence Center for Gas Exchange (CCGEx)Marcus Wallenberg Laboratory MWL
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