Quantifying how the environment effects SAE-J192 pass-by noise testing of snowmobiles
Document Type
Conference Proceeding
Publication Date
5-16-2005
Department
Department of Mechanical Engineering-Engineering Mechanics
Abstract
A study was performed to understand how the environment affects the results of J-192 pass-by noise testing of snowmobiles. This study involved measuring the sound pressure at 7 different microphone positions due to both speaker excitation and various snowmobiles passing through the microphone array. Simultaneous to the sound measurements, weather conditions were recorded including wind speed and direction, temperature, humidity, snow depth, and in some cases ground hardness. All measured data was then used to determine which environmental factors influenced the measured sound pressures the most. Finally, a sound power approach was also used to measure the snowmobile pass-by noise to determine whether this method was more repeatable than the single microphone approach which showed variations of over 7 dBA over the course of testing.
Publication Title
SAE Technical Papers
Recommended Citation
Blough, J.,
Gwaltney, G.,
&
Vizanko, J.
(2005).
Quantifying how the environment effects SAE-J192 pass-by noise testing of snowmobiles.
SAE Technical Papers.
http://doi.org/10.4271/2005-01-2414
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/2866
Publisher's Statement
Copyright © 2005 SAE International. Publisher’s version of record: https://doi.org/10.4271/2005-01-2414