Artificial Reduction of Wind Tunnel Background Noise in Vehicle Wind Noise Testing Ford Motor Company

Format:

Conference/Event

Author/Creator:

Hofmann, Lorenz M., author.

Conference Name:

International Congress & Exposition (1998-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

Vehicle wind noise testing is usually done at elaborate tunnel facilities with minimal tunnel background noise, Techniques to reduce the tunnel noise, such as acoustic panels or improved fan systems, translate into higher costs for wind noise testing. We introduce an innovative procedure using an adaptive filtering algorithm to separate the tunnel noise from the wind noise inside the cabin of the vehicle. This new technique is capable of artificially reducing the tunnel background noise at low frequencies. Such a procedure has the potential to dramatically improve the wind noise testing capability of any wind tunnel, without the need for costly acoustic treatments

Notes:

Vendor supplied data

Publisher Number:

980390

Access Restriction:

Restricted for use by site license