An Investigation of Reverberation Chamber High-Frequency Vibration-Acoustic Problem for an Aircraft Cabin Title

In this paper, reverberation chamber high-frequency vibration-acoustic problem for an aircraft cabin is investigated with two methods. One is combining energy finite element analysis (EFEA) and energy boundary element analysis (EBEA); another is boundary element method by SYSNOISE. Comparison is performed between these two methods.

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Combining an energy boundary element analysis with an energy finite element analysis for computing airborne noise inside a flexible structure due to an exterior acoustic source

The Journal of the Acoustical Society of America ◽

10.1121/1.4786830 ◽

2006 ◽

Vol 119 (5) ◽

pp. 3418-3418

Author(s):

Geng Zhang ◽

Nickolas Vlahopoulos

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Boundary Element ◽

Flexible Structure ◽

Acoustic Source ◽

Element Analysis ◽

Airborne Noise ◽

Boundary Element Analysis ◽

Energy Finite Element Analysis

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The assessment of human exposure to low frequency and high frequency electromagnetic fields using the boundary element analysis

Engineering Analysis with Boundary Elements ◽

10.1016/s0955-7997(03)00070-5 ◽

2003 ◽

Vol 27 (10) ◽

pp. 999-1007 ◽

Cited By ~ 13

Author(s):

Dragan Poljak ◽

Choy Yoong Tham ◽

Niksa Kovac

Keyword(s):

Boundary Element ◽

Electromagnetic Fields ◽

High Frequency ◽

Human Exposure ◽

Low Frequency ◽

Element Analysis ◽

Boundary Element Analysis

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Isogeometric boundary element analysis and shape optimization by PSO for 3D axi-symmetric high frequency Helmholtz acoustic problems

Journal of Sound and Vibration ◽

10.1016/j.jsv.2020.115598 ◽

2020 ◽

Vol 486 ◽

pp. 115598

Author(s):

Ahmed Mostafa Shaaban ◽

Cosmin Anitescu ◽

Elena Atroshchenko ◽

Timon Rabczuk

Keyword(s):

Shape Optimization ◽

Boundary Element ◽

High Frequency ◽

Element Analysis ◽

Boundary Element Analysis

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Combining an Energy Boundary Element with an Energy Finite Element Analysis for Airborne Noise Simulations

10.4271/2007-01-2178 ◽

2007 ◽

Cited By ~ 4

Author(s):

Nickolas Vlahopoulos ◽

Geng Zhang ◽

Jim He

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Boundary Element ◽

Element Analysis ◽

Airborne Noise ◽

Energy Finite Element Analysis

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High-frequency random vibrations of a stiffened plate with a cutout using energy finite element and experimental methods

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406220914328 ◽

2020 ◽

Vol 234 (16) ◽

pp. 3297-3317

Author(s):

A Nokhbatolfoghahai ◽

HM Navazi ◽

H Haddadpour

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

High Frequency ◽

Experimental Methods ◽

Stiffened Plate ◽

Random Vibrations ◽

Element Analysis ◽

High Frequency Vibrations ◽

Energy Finite Element Analysis ◽

Vibration Tests

In this paper, by employing the energy finite element analysis, the high-frequency vibrations of a stiffened plate having a cutout, subjected to random vibrations, have been analyzed, and the obtained results have been validated by use of experimental methods. By using equations for joining of structures, energy finite element analysis computer codes were developed for the coupling of beam-plate elements. Finally, a plate containing a cutout and three stiffeners was fabricated and subjected to high-frequency random vibration tests. The results of the prepared codes were compared with the results of experiments. These comparisons indicated that at high frequencies, the energy finite element analysis can be used as an effective tool in the analysis of high-frequency vibrations.

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