Acoustic Properties Of Micro-Perforated Panels Made From Oil Palm Empty Fruit Bunch Fiber Reinforced Polylactic Acid

Sekar, Vignesh and Kassim, Dg Hafizah and Putra, Azma and Noum, Se Yong Eh and Sivanesan, Sivakumar and Chin, Kok Chun and Wong, Yi San (2021) Acoustic Properties Of Micro-Perforated Panels Made From Oil Palm Empty Fruit Bunch Fiber Reinforced Polylactic Acid. Sound and Vibration, 55 (4). pp. 343-352. ISSN 1541-0161

Text TSP_SV_45092.pdf Download (1MB)

Abstract

This paper presents the development and performance of Micro-Perforated Panels (MPP) from natural fiber reinforced composites. The MPP is made of Polylactic Acid (PLA) reinforced with Oil Palm Empty Fruit Bunch Fiber (OPEFBF). The investigation was made by varying the fiber density, air gap, and perforation ratio to observe the effect on the Sound Absorption Coefficient (SAC) through the experiment in an impedance tube. It is found that the peak level of SAC is not affected, but the peak frequency shifts to lower frequency when the fiber density is increased. This phenomenon might be due to the presence of porosity in the inner wall of the holes. Increasing or decreasing the air gap and perforation ratio shifts the peaks of acoustic absorption either way

Item Type:	Article
Uncontrolled Keywords:	Acoustics, micro-perforated panel, natural fiber reinforced composite, laser cutting, impedance tube
Divisions:	Faculty of Mechanical Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	06 May 2022 09:56
Last Modified:	06 May 2022 09:56
URI:	http://eprints.utem.edu.my/id/eprint/25908
Statistic Details:	View Download Statistic

Actions (login required)

View Item