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Acoustic behavior of intake manifolds under tip-in and steady flow conditions: an experimental investigation

Palathamveed, Naqash
http://rave.ohiolink.edu/etdc/view?acc_num=osu1199738161

Abstract Details

2008, Master of Science, Ohio State University, Mechanical Engineering.
The trend towards quieter vehicles has led to increased efforts in designing automotive intake manifolds for improved vibro-acoustic performance. The present work experimentally investigates the acoustic behavior of: 1) a production plastic manifold under tip-in conditions; and 2) three V8 prototype intake manifolds (aluminum, stereolith, and plastic) under steady flow conditions. An experimental setup is developed in the flow laboratory to reproduce tip-in conditions, which involve rapid opening of throttle. The impact of varying the flow field downstream of the throttle body on tip-in whoosh noise is investigated by varying the throttle opening rate and inserting flow modifiers between the manifold and throttle body. Steady flow noise investigations with the prototype manifolds are conducted on a flow bench at 3 flow rates and corresponding throttle opening angles. Impact testing is also performed on all prototype manifolds to examine the level of correlation between measured noise and structural vibrations.
Ahmet Selamet (Advisor)
209 p.
Engineering, Mechanical
Acoustics; Flow noise; Intake manifold; Intake noise; NVH; Tip-in

Recommended Citations

Citations

  • Palathamveed, N. (2008). Acoustic behavior of intake manifolds under tip-in and steady flow conditions: an experimental investigation [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1199738161

    APA Style (7th edition)

  • Palathamveed, Naqash. Acoustic behavior of intake manifolds under tip-in and steady flow conditions: an experimental investigation. 2008. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1199738161.

    MLA Style (8th edition)

  • Palathamveed, Naqash. "Acoustic behavior of intake manifolds under tip-in and steady flow conditions: an experimental investigation." Master's thesis, Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1199738161

    Chicago Manual of Style (17th edition)

osu1199738161
629
© 2007, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.