Acoustic Modal Analysis and Transmission Properties of a Prototype Induction System Dept. of Mechanical Engineering, University of Kentucky Lexington, KY

Format:

Conference/Event

Author/Creator:

Shugong, Liu, author.

Conference Name:

SAE Noise and Vibration Conference and Exposition (1989-05-16 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

The objective of this study was to determine whether standard modeling packages could be used to predict the acoustical response of an IC-engine induction system. To determine the answer to this question, we constructed from acrylic plastic a "prototype" induction system for a four-cylinder engine. Two modeling packages were used. The first package used was BEMAP, a boundary element program designed specifically for acoustical modeling. The second package used was ANSYS, a general purpose finite element program. For both BEMAP and ANSYS, a radiation boundary condition was used at the air intake of the induction system. Results from BEMAP and ANSYS are compared to experimental data. The experimental results were obtained by exciting one of the induction system intake ports with a small loudspeaker and measuring the transfer function between the sound pressure at the air inlet and the sound pressure at the intake portrait All three sets of results exhibit good agreement

Notes:

Vendor supplied data

Publisher Number:

891170

Access Restriction:

Restricted for use by site license