Turbofan low-noise wide-chord fan
Performance (advantages)
Lower noise and greater stall margin of gasturbine engine units
2-3-fold greater life
2-3-times lesser engine removal rate due to foreign object damage
Efficiency increase by 3-4%
Lesser rotor mass by 20…30% (15…45% with blades of CM)
Proposals
Design with account of non-stationary gasdynamic bladerows interaction
Static and dynamic strength calculation of blades in non-linear geometric situation
Maintenance of vibration strength, flatter and resonance debugging
Optimization of manufacturing methods, greater workpieces quality,
reinforcement methods development.
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