Analysis and evaluation of frequency characteristics of aircraft fuselage skin. defence against noice.
Aviation technics and technology
AbstractThe paper describes simplified method of oscillation calculation of the aircraft fuselage panels. Verification of results of the eigenmodes calculations of the rectangular plate and fuselage compartment was performed. Simplification of the vibration problem of the aircraft compartment was achieved by the optimal selection of the plate. Usage of the rubber straps was also suggested as a method of the aircraft sound isolation. This method allows to divide oscillation frequency of ventilator influence from the fuselage skins normal mode.
Keywords:eigenmode, rectangular plate, fuselage compartment, responseconstruction, rubber straps.