This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Exterior Noise Reduction of a Medium Truck
Annotation ability available
Sector:
Event:
1995 SAE Brasil
Language:
English
Abstract
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.
Authors
- Hélcio Onusic - MERCEDES-BENZ DO BRASIL S.A. and IFUSP
- Luiz C. Ferraro - MERCEDES-BENZ DO BRASIL S.A. and IFUSP
- Marcelo M. Hage - MERCEDES-BENZ DO BRASIL S.A. and IFUSP
- Edgard L. Baptista - MERCEDES-BENZ DO BRASIL S.A. and IFUSP
- Félix Mansano - MERCEDES-BENZ DO BRASIL S.A. and IFUSP
- Carlos A. M. de Freitas - MERCEDES-BENZ DO BRASIL S.A. and IFUSP
Citation
Onusic, H., Ferraro, L., Hage, M., Baptista, E. et al., "Exterior Noise Reduction of a Medium Truck," SAE Technical Paper 952194, 1995, https://doi.org/10.4271/952194.Also In
References
- Exterior Noise Reduction - Truck and Bus 1989
- Feitzelmayer K.F. Noise Reduction in Commercial Vehicles Truck Technology International 1991 277 282
- Onusic H. Redução dos Níveis de Emissões de Ruído em Veículos Comerciais 1994 113 122
- Onusic H. Considerações Técnicas sobre a Redução dos Níveis de Emissão de Ruído em Veículos Automotores 1992 181 204
- Hage M.M. Onusic H. Ferraro L.C. Fogaça M.A. Mizutani V. Baptista E.L. Estudo do Encapsulmento de um Veículo Comercial Leve 1993 38 45
- Fogaça M.A. Onusic H. Munhoz M.A. Estudo Preliminar do Comportamento Acústico de Silenciosos não Restritivos em Veículos Pesados 1991
- Morel J. Onusic H. Campos J.P. A Termotecnia no Desenvolvimento Automobilístico: A Célula Térmica Veicular na MBBras 1992