Title: Vibro-acoustic analysis of functionally graded circular discs under thermal environment

Authors: Boorle Rajesh Kumar, N. Ganesan, Raju Sethuraman

Addresses: Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai-600036, India. ' Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai-600036, India. ' Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai-600036, India

Abstract: A circular disc made up of Functionally Graded Material (FGM) with several cases of FGM index are modelled and their vibration response to a harmonic point load in a thermal environment with temperature dependant material properties was computed by using the Finite Element Method (FEM). A macro was developed by the corresponding author in ANSYS Parametric Design Language for modelling FGM using the available physics in ANSYS. The acoustic response of a FGM circular disc was computed by coupling the vibration data from the FEM to the Boundary Element Method (BEM) using LMS SYSNOISE.

Keywords: FGM circular discs; functionally graded materials; FEM; finite element method; BEM; boundary element method; critical buckling temperature; ANSYS; LMS VIRTUAL LAB; parametric design; vibro-acoustic analysis; vibration response; harmonic point load; thermal environment; noise.

DOI: 10.1504/IJVNV.2008.020939

International Journal of Vehicle Noise and Vibration, 2008 Vol.4 No.2, pp.123 - 149

Available online: 24 Oct 2008 *

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