An Application of Structural-Acoustic Coupling Analysis to Boom Noise Nissan Motor Company, Limited

Format:

Conference/Event

Author/Creator:

Yamazaki, Ichio, author.

Conference Name:

Passenger Car Meeting and Exposition (1989-09-17 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

AbstractReduction of interior noise is an important factor in vehicle design and many experimental and theoretical studies have been carried out to find effective noise reduction techniques. Previously, we developed a Structural-Acoustic Uncoupled Program, ACOUST3, as a technique for estimating low-frequency noise in the vehicle interior. In the present work, ACOUST3 has been extended to construct an acoustic coupling analysis system, ASCA, which is used to calculate low-frequency noise, such as boom noise. In order to calculate low-frequency noise accurately, it is necessary to represent the vibration characteristics of the trimmed body as closely as possible. To do this, we built a trimmed body model, incorporating 22 trim parts, based on vibration test results, and found that the calculated results obtained with the model correlated well with experimental data. This confirmed that the ASCA system can estimate low-frequency interior noise with good accuracy, making it a useful tool for reducing noise and vibration at the vehicle design and development stage

Notes:

Vendor supplied data

Publisher Number:

891996

Access Restriction:

Restricted for use by site license