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Analytical and Experimental Techniques in Solving the Plastic Intake Manifold NVH
Technical Paper
2001-01-1544
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The intent of this paper is to summarize the work of the V8 power plant intake manifold radiated noise study. In a particular V8 engine application, customer satisfaction feedback provided observations of existing unpleasant noise at the driver's ear. A comprehensive analysis of customer data indicated that a range from 500 to 800 Hz suggests a potential improvement in noise reduction at the driver's ear.
In this study the noise source was determined using various accelerometers located throughout the valley of the engine and intake manifold. The overall surface velocity of the engine valley was ranked with respect to the overall surface velocity of the intake manifold. An intensity mapping technique was also used to determine the major component noise contribution. In order to validate the experimental findings, a series of analysis was also conducted. The analysis model included not only the plastic intake manifold, but also the whole powertrain.
Finally by using alternative components, an optimum package was developed that combines weight and cost while enhancing the NVH performance of the plastic intake manifold.
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Siavoshani, S., Stickler, M., Nehme, H., and Krajewski, B., "Analytical and Experimental Techniques in Solving the Plastic Intake Manifold NVH," SAE Technical Paper 2001-01-1544, 2001, https://doi.org/10.4271/2001-01-1544.Also In
References
- Mead, Denys J. “Passive Vibration Control,” John Wiley & Sons New York 1998
- Nehme, Hassan Siavoshani, S.J. “Analytical Analysis of Intake Manifold Using Structural Attenuation Method (SAM),” Ford Motors Corporation 2001
- Siavoshani, S.J. Analytical and Experimental Study of Piston Slap in Conjunction with Block Vibration Oakland University Rochester Michigan 1998
- Siavoshani, S.J. “5.4L 2001 NVH of the Powerplant-Valley Stuffer investigation,” Ford Motors Corporation 2000