Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25543
Title: The acoustic performance of an inclined barrier for high-rise residents
Authors: Cheng, WF
Ng, CF
Issue Date: 2001
Publisher: Academic Press
Source: Journal of sound and vibration, 2001, v. 242, no. 2, p. 295-308 How to cite?
Journal: Journal of sound and vibration 
Abstract: The objective of this paper is to develop a scale model to analyze the performance of the inclined barrier design. A computer program was used to outline the zone of noise variation with the tilted angle of a barrier. The results of this study show that the average noise level at lower receivers behind the nearside barrier could be reduced by 4, 6 and 10 dB for 125, 250 and 500 Hz, respectively, by tilting the angle of the farside barrier by over 10°. This result seems to be sufficient to counteract the reflected noise problems at lower receivers. It is also noted that degradation is smaller for low frequency. The simple image source and virtual barrier model computer program can help us to locate the critical reflection zone with different tilted angles of the barriers. Based on the image source model, appropriate improvements of inclined barrier can be designed easily by using geometrical drawings without calculation.
URI: http://hdl.handle.net/10397/25543
ISSN: 0022-460X
EISSN: 1095-8568
DOI: 10.1006/jsvi.2000.3352
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

8
Last Week
0
Last month
1
Citations as of Aug 14, 2017

WEB OF SCIENCETM
Citations

5
Last Week
0
Last month
1
Citations as of Aug 15, 2017

Page view(s)

36
Last Week
0
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.