04 - Propulsion
DYNAMICS AND VIBRATION OF NEW GENERATION AVIATION ENGINES
V. Baklanov, Russia
The next 10 - 15 years we will have to deal with aircraft equipped with turbofan engines of high bypass ratio (8.5 - 12). Aircraft equipped with these engines, can successfully execute future noise standards, ensure the reduction of harmful emissions and increase of fuel efficiency, but this is accompanied by a significant change of dynamic characteristics and vibration engines. Vibration spectrum of turbofan engines is greatly extended with a shift in the low-frequency range due to low rotor speed fan. Solving problems of structural noise low-frequency part of the spectrum will require a new generation of engine mounts.