Random Vibration of Space Shuttle Weather Protection Systems

Random Vibration of Space Shuttle Weather Protection Systems

The article deals with random vibrations of the space shuttle weather protection systems. The excitation model represents a fit to the measured experimental data. The cross-spectral density is given as a convex combination of three exponential functions. It is shown that for the type of loading cons...

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Main Authors: Isaac Elishakoff, Menahem Baruch, Liping Zhu, Raoul Caimi
Format: Article
Language:English
Published: Hindawi Limited 1995-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.3233/SAV-1995-2202
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spelling doaj-15f154e526fa4300b6f4a292d9afc0a32020-11-24T22:36:06ZengHindawi LimitedShock and Vibration1070-96221875-92031995-01-012211111810.3233/SAV-1995-2202Random Vibration of Space Shuttle Weather Protection SystemsIsaac Elishakoff0Menahem Baruch1Liping Zhu2Raoul Caimi3Department of Mechanical Engineering, Florida Atlantic University, Boca Raton, FL 33431-0991, USAFaculty of Aerospace Engineering, Technion-Israel Institute of Technology, Haifa 32000, IsraelDepartment of Mechanical Engineering, Florida Atlantic University, Boca Raton, FL 33431-0991, USANASA Kennedy Space Center, Titusville, FL 32899, USAThe article deals with random vibrations of the space shuttle weather protection systems. The excitation model represents a fit to the measured experimental data. The cross-spectral density is given as a convex combination of three exponential functions. It is shown that for the type of loading considered, the Bernoulli-Euler theory cannot be used as a simplified approach, and the structure will be more properly modeled as a Timoshenko beam. Use of the simple Bernoulli-Euler theory may result in an error of about 50% in determining the mean-square value of the bending moment in the weather protection system.http://dx.doi.org/10.3233/SAV-1995-2202
collection DOAJ
language English
format Article
sources DOAJ
author Isaac Elishakoff
Menahem Baruch
Liping Zhu
Raoul Caimi
spellingShingle Isaac Elishakoff
Menahem Baruch
Liping Zhu
Raoul Caimi
Random Vibration of Space Shuttle Weather Protection Systems
Shock and Vibration
author_facet Isaac Elishakoff
Menahem Baruch
Liping Zhu
Raoul Caimi
author_sort Isaac Elishakoff
title Random Vibration of Space Shuttle Weather Protection Systems
title_short Random Vibration of Space Shuttle Weather Protection Systems
title_full Random Vibration of Space Shuttle Weather Protection Systems
title_fullStr Random Vibration of Space Shuttle Weather Protection Systems
title_full_unstemmed Random Vibration of Space Shuttle Weather Protection Systems
title_sort random vibration of space shuttle weather protection systems
publisher Hindawi Limited
series Shock and Vibration
issn 1070-9622
1875-9203
publishDate 1995-01-01
description The article deals with random vibrations of the space shuttle weather protection systems. The excitation model represents a fit to the measured experimental data. The cross-spectral density is given as a convex combination of three exponential functions. It is shown that for the type of loading considered, the Bernoulli-Euler theory cannot be used as a simplified approach, and the structure will be more properly modeled as a Timoshenko beam. Use of the simple Bernoulli-Euler theory may result in an error of about 50% in determining the mean-square value of the bending moment in the weather protection system.
url http://dx.doi.org/10.3233/SAV-1995-2202
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AT menahembaruch randomvibrationofspaceshuttleweatherprotectionsystems
AT lipingzhu randomvibrationofspaceshuttleweatherprotectionsystems
AT raoulcaimi randomvibrationofspaceshuttleweatherprotectionsystems
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