Date of Award

Summer 1997

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Mechanical & Aerospace Engineering

Program/Concentration

Aerospace Engineering

Committee Director

Chuh Mei

Committee Member

Donald Kunz

Committee Member

Thomas Alberts

Call Number for Print

Special Collections; LD4331.E535 S76

Abstract

With the rapid development of computational capabilities and the implementation of complex tools for commercial finite element programs, predicting structural dynamics and related acoustics of complex structures is presently achievable. Structural finite element modeling is a design tool widely utilized for analysis of problems of all kinds. However, high frequency vibration of complex structures, such as the reinforced aircraft panel used for this study, currently does not correlate well with experimental measurements using conventional modeling methods. An investigation into the commonly used modeling techniques as well as the new tools of commercial finite element analysis packages for the prediction of high frequency vibration and related acoustic radiated noise is presented. Experimental modal excitation measurements of the aircraft panel, both globally and locally, were taken using different laser measurement systems. These results are used to correlate finite element prediction using the latest modeling techniques for the MSC/PATRAN and MSC/NASTRAN finite element package.

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In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

DOI

10.25778/6m3y-g039

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