Vibroacoustic analysis of aircraft structure

Kumar, Pradeep G and Balakrishnan, B and Raja, S and Shetty, Kiran Kumar (2013) Vibroacoustic analysis of aircraft structure. In: National conference on new horizons in civil engineering – NHCE 2013, April 12-13, 2013, M I T Manipal.

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Finite element and boundary element based vibro-acousticmodeling and analysis is done for a bottom half fuselage model and a full sized transport aircraft fuselage. Vibroacousticsimulationsoftware is used to validate the experimental results of half fuselage model where Sound Pressure Levels(SPL) are found with and without the Noise Control Treatment(NCT). Vibro-acoustic simulation results are in good accordance with the experimental results. Near field propeller noise of the aircraft is estimated using appropriate method. A 14 seater civil aircraft structure is analyzed in the same way for the estimated propeller noise to study the vibro-acoustic behavior and SPL inside the fuselage with and without NCT applied on fuselage skin.

Item Type: Conference or Workshop Item (Paper)
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 05 Sep 2013 06:32
Last Modified: 05 Sep 2013 06:32

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