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IJSTR >> Volume 4 - Issue 11, November 2015 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Response Analysis Of Payload Fairing Due To Acoustic Excitation

[Full Text]



Annu Cherian, P. Geena George, Dr. C. Prabha



Keywords: Cone-Cylinder, Diffuse Acoustic Field (DAF), Payload Fairing, Statistical Energy Analysis (SEA), Vibro-Acoustic



Abstract: During flight missions, launch vehicles are subjected to a severe dynamic pressure loading, aero-acoustic and structure-borne excitations of various circumstances, which can endanger the survivability of the payload and the vehicles electronic equipment, and consequently the success of the mission. The purpose of the fairing is to protect the satellite from damage during launch until deployment in space. Both the structural and acoustic loads are significant during the first few minutes of a launch and have the potential to damage the payload. This paper describes the analysis of mechanical structure and the inner acoustic cavity of the payload fairing subjected to acoustic field. The vibro-acoustic behaviour of the fairing is analyzed using Statistical Energy Analysis (SEA) Model. The software VA One is used for the statistical energy analysis of launch vehicle payload fairing due to acoustic excitation.



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