Exterior Noise Reduction of a Medium Truck MERCEDES-BENZ DO BRASIL S.A. and IFUSP

Format:

Conference/Event

Author/Creator:

Onusic, Hélcio, author.

Conference Name:

1995 SAE Brasil (1995-10-02 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

The paper describes the acoustic development effected in one middle-class commercial vehicle with the purpose of achieving the external sound pressure levels dictated by new Brazilian legislation. The philosophy adopted as well as the mandatory modifications of the truck to fulfill the noise limits are showed together with the non-acoustic characteristics. Besides the acoustic treatment of some specific sources, it was introduced an acoustic barrier, usually called capsule or shield to reduce the noise emission of the engine-transmission assembly working by the mass law principle and sound absorption

Notes:

Vendor supplied data

Publisher Number:

952194

Access Restriction:

Restricted for use by site license