Noise Cancellation Technique for Automotive Intake Noise Using A Manifold Bridging Technique University of Windsor

Format:

Book

Conference/Event

Author/Creator:

Novak, Colin, author.

Conference Name:

SAE 2005 Noise and Vibration Conference and Exhibition (2005-05-16 : Grand Traverse, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

Due to considerable efforts of automobile manufacturers to attenuate various noise sources within the passenger compartment, other sources, including induction noise have become more noticeable. The present study investigates the feasibility of using a non-conventional noise cancellation technique to improve the acoustic performance of an automotive induction system by using acoustic energy derived from the exhaust manifold as the dynamic noise source to cancel intake noise.The validity of this technique was first investigated analytically using a computational engine simulation software program. Using these results, a physical model of the bridge was installed and tested on a motored engine. The realized attenuation of the intake noise was evaluated using conventional FFT analysis techniques as well as psychoacoustic metrics including loudness, sharpness, roughness and fluctuation strength.While good correlation was found between the numerical and experimental results, additional work is recommended before implementation of a manifold bridge can be considered commercially viable

Notes:

Vendor supplied data

Publisher Number:

2005-01-2368

Access Restriction:

Restricted for use by site license