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Preliminary Investigation On The Perforated Panel Mobility Using Finite Element Method

Putra, Azma and Rivai, Ahmad and Mun, Wai C. and Muhammad, Noryani (2013) Preliminary Investigation On The Perforated Panel Mobility Using Finite Element Method. Applied Mechanics and Materials. pp. 1-7. ISSN 1660-9336 (In Press)

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Introduction of holes into plat-like structures is commonly found as one of practical noise control measures to reduce sound radiation. However, perforation into the panel also reduces the panel stiffness and hence increases its vibration. Since the discussion and also the analytical model to quantify this effect are lacking, this paper discusses the dynamics of a perforated panel from the results obtained using Finite Element Method (FEM). Different hole geometries are simulated to investigate their effect on the plate mobility. It is found that increasing the perforation ratio increases the plate mobility particularly at off-resonance peaks. The effect of hole size and number are also discussed in this report.

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Mechanical Engineering > Department of Structure and Materials
Depositing User: Dr Azma Putra
Date Deposited: 27 Jul 2013 15:12
Last Modified: 28 May 2015 04:00

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