Analysis of reflection characteristics of a normal incidence plane wave on resonant sound absorbers: A finite element approach

1993 ◽  
Vol 93 (3) ◽  
pp. 1308-1318 ◽  
Author(s):  
V. Easwaran ◽  
M. L. Munjal
Keyword(s):  
Finite Element ◽  
Plane Wave ◽  
Normal Incidence ◽  
Finite Element Approach ◽  
Incidence Plane ◽  
Element Approach ◽  
Reflection Characteristics

scholarly journals A goal-oriented adaptive finite-element approach for plane wave 3-D electromagnetic modelling

2013 ◽  
Vol 194 (2) ◽  
pp. 700-718 ◽  
Author(s):  
Zhengyong Ren ◽  
Thomas Kalscheuer ◽  
Stewart Greenhalgh ◽  
Hansruedi Maurer
Keyword(s):  
Finite Element ◽  
Plane Wave ◽  
Adaptive Finite Element ◽  
Finite Element Approach ◽  
Electromagnetic Modelling ◽  
Element Approach

Anti-Plane Wave in a Piezoelectric Viscoelastic Composite Medium: A Semi-Analytical Finite Element Approach Using PML

2020 ◽  
Vol 12 (02) ◽  
pp. 2050020 ◽  
Author(s):  
Mriganka Shekhar Chaki ◽  
Abhishek Kumar Singh
Keyword(s):  
Finite Element ◽  
Plane Wave ◽  
Frequency Equation ◽  
Composite Medium ◽  
Viscoelastic Composite ◽  
Finite Element Approach ◽  
Element Approach ◽  
Influencing Parameters ◽  
Graphical Illustration ◽  
Plane Wave Propagation

In the present study, anti-plane wave propagation has been considered in a piezoelectric viscoelastic composite medium where the surface has been coated with an infinitesimally thin and perfectly conducting electrode which is grounded. The frequency equation has been obtained analytically and the result has been found in well agreement with the classical B-G wave frequency equation which validates the result. Moreover, Semi-Analytical Finite Element using Perfectly Matched Layer (SAFE-PML) method has been adopted in order to deduce frequency equation. Numerical computation and graphical illustration have been done in order to study some influencing parameters. Both frequency equations obtained through analytical method and SAFE-PML method have been compared through graphs which also validate the obtained results.

A Finite Element Approach to the Transient Dynamics of Rolling Tires with Emphasis on Rolling Noise Simulation4

2007 ◽  
Vol 35 (3) ◽  
pp. 165-182 ◽  
Author(s):  
Maik Brinkmeier ◽  
Udo Nackenhorst ◽  
Heiner Volk
Keyword(s):  
Finite Element ◽  
Traffic Noise ◽  
Complex Eigenvalue ◽  
Arbitrary Lagrangian Eulerian ◽  
Finite Element Approach ◽  
Road Systems ◽  
Element Approach ◽  
Road Surface Roughness ◽  
Complex Eigenvalue Analysis ◽  
Rolling Noise

Abstract The sound radiating from rolling tires is the most important source of traffic noise in urban regions. In this contribution a detailed finite element approach for the dynamics of tire/road systems is presented with emphasis on rolling noise prediction. The analysis is split into sequential steps, namely, the nonlinear analysis of the stationary rolling problem within an arbitrary Lagrangian Eulerian framework, and a subsequent analysis of the transient dynamic response due to the excitation caused by road surface roughness. Here, a modal superposition approach is employed using complex eigenvalue analysis. Finally, the sound radiation analysis of the rolling tire/road system is performed.

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