A Practical Approach for Pass by Noise Testing of a Car Simulated in a Semi- Anechoic Chamber TATA Motors Limited

Format:

Conference/Event

Author/Creator:

Ambardekar, Ambardekar, author.

Contributor:

Hudson, David

Reddy, Y. R. K.

Shewale, Amol

Conference Name:

SIAT 2011 (2011-01-19 : Pune, India)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Pune, MH The Automotive Research Association of India 2011

Summary:

In-door simulation of Pass By Noise [PBN] Testing of a car was successfully attempted on a chassis dynamometer in a full-scale Vehicle Semi-Anechoic Chamber [VSAC].The work has a practical approach for quick testing of vehicles to be submitted for certification. It has 3 parts:Optimum numbers of microphones was sought out in VSAC to reduce the set-up time without sacrificing accuracy of the results. Dyno-roller / tyre radiated noise need be reduced to have the close correlation with the Track results. There was almost the same trend of influence of changes in dominant design parameters on the vehicle PBN as measured in the VSAC and on the Track. Measured Acoustic Transfer Functions [ATFs] between the source and microphone at 7.5m were used to determine the source contributions to the maximum PBN of the vehicle

Notes:

Vendor supplied data

Publisher Number:

2011-26-0064

Access Restriction:

Restricted for use by site license