26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS 2008-4.9.4

PROBLEMS OF VIBROACOUSTICS FOR NEW AIRPLANE GENERATION

V. Baklanov
JSC “Tupolev”, Russian Federation

Keywords: by-pass ratio engine, structural noise, vibroisolation

Substantial noise redistribution has occurred in the aircraft of new generation. Vibration spectrum shifts towards the low-frequency range.Power plant may cause low-frequency high-level noise in the cabin.Selecting power plant for airplanes of new generation should include developing a high-performance system of vibroprotection of crew and passengers.

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