Advances in Acoustics and Vibration / 2009 / Article / Tab 2

Research Article

Modeling and Eigenfrequency Analysis of Sound-Structure Interaction in a Rectangular Enclosure with Finite Element Method

Table 2

Comparison eigenfrequency analysis between simulations, analytical and experimental results.

modeFinite elementAnalyticalExperimentFEMFEM
modelling (FEM)error 1%error 2%
using COMSOLversusversus
softwareanalyticalexperimenta

155.1140.950.125.78489.0909
282.7472.47412.497010.5632
3116.293.391.519.707421.2565
4138.03123.1119.510.816513.4246
5147.01124.1124.515.584015.3119
6196.81174.717211.234212.6061
7216.39194.419210.162211.2713
8227.59203.3194.0510.672714.7370
9243.87241.82350.84883.6372
10283.28251.224511.324513.5131
11289.25283.3275.52.05704.7537
12293.49319.53138.86236.6476
13323.72342.33385.73954.4112
14342.033593524.96162.9149
15370.58380.53742.67690.9229
16382.35405.1395.55.95003.4393

Average of errors %9.9299639.281338

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