Normal Incidence of Sound Transmission Loss of a Double-Leaf Partition Inserted with a Microperforated Panel
Joint Authors
Ismail, A. Y.
Py, M. S.
Ayob, Md. R.
Putra, Azma
Ramlan, R.
Source
Advances in Acoustics and Vibration
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-04
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
A double-leaf partition in engineering structures has been widely applied for its advantages, that is, in terms of its mechanical strength as well as its lightweight property.
In noise control, the double-leaf also serves as an effective noise barrier.
Unfortunately at low frequency, the sound transmission loss reduces significantly due to the coupling between the panels and the air between them.
This paper studies the effect of a microperforated panel (MPP) inserted inside a double-leaf partition on the sound transmission loss performance of the system.
The MPP insertion is proposed to provide a hygienic double-leaf noise insulator replacing the classical abrasive porous materials between the panels.
It is found that the transmission loss improves at the troublesome mass-air-mass resonant frequency if the MPP is located closer to the solid panel.
The mathematical model is derived for normal incidence of acoustic loading.
American Psychological Association (APA)
Putra, Azma& Ismail, A. Y.& Ramlan, R.& Ayob, Md. R.& Py, M. S.. 2013. Normal Incidence of Sound Transmission Loss of a Double-Leaf Partition Inserted with a Microperforated Panel. Advances in Acoustics and Vibration،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-455317
Modern Language Association (MLA)
Putra, Azma…[et al.]. Normal Incidence of Sound Transmission Loss of a Double-Leaf Partition Inserted with a Microperforated Panel. Advances in Acoustics and Vibration No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-455317
American Medical Association (AMA)
Putra, Azma& Ismail, A. Y.& Ramlan, R.& Ayob, Md. R.& Py, M. S.. Normal Incidence of Sound Transmission Loss of a Double-Leaf Partition Inserted with a Microperforated Panel. Advances in Acoustics and Vibration. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-455317
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-455317