Treatment of auxiliary power unit as a ground noise source in airport noise modeling

In Japan, noise index for evaluating airport noise was changed from WECPNL to Lden, which will be enforced from April, 2013. It was also decided to take aircraft ground noise within the airport when necessary. As a part of these ground noise components, it is necessary to take account of noise contr...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2012-04, Vol.131 (4_Supplement), p.3375-3375
Main Authors: Shinohara, Naoaki, Iwasawa, Katsuji, Yamada, Ichiro
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In Japan, noise index for evaluating airport noise was changed from WECPNL to Lden, which will be enforced from April, 2013. It was also decided to take aircraft ground noise within the airport when necessary. As a part of these ground noise components, it is necessary to take account of noise contributions due to APU operation on the apron before take-off, after landing, or maintenance during the midnight. This presentation explains a brief summary of an investigation of sound source characteristics of APU noise and compares noise calculations using the result with measurements observed by unattended noise monitoring devices.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4708726