The current race for green mobility is changing the design philosophy in all engineering disciplines; this is tangible especially in aeronautical segment, where optimization and innovation are the key for a sustainable future mobility. In addition, the comfort of passengers is a critical issue for both, manufacturer and airlines, and the noise levels in the passenger cabin of turbopropeller-driven aircraft are typically higher than the levels in comparable turbofan-powered aircraft. The sources of noise in a turboprop aircraft include boundary layer flow noise, structure-borne noise due to engine vibration, and acoustic excitation of the fuselage due to the propeller, with the latter being dominant for most turboprop aircraft. According to Clean Sky program, this proposal has developed an innovative technologies that will be used in the next gen aeronautical transports for the comfort of passengers.
The current systems effectiveness is limited by the following aspects:
• fixed fuselage diameter and fixed position;
• absence of a control closed loop for reverberance control;
• manual input for each loudspeaker and third-octave band.
and CONCERTO removes these limits developing a smarter and modular system, making the testing phase simpler and faster and in addion avoiding the typical complex system setup procedures.
The main project outcome are:
- smart testing system
- innovative control loop, because it is a closed control loop to obtain high speed performance with a control strategy and a pre-test analysis to reduce the number of control microphones, time and costs in the test set-up
- modular structure, its mechanical structure and software are designed to accept fuselage of different diameters (from 2.5 m to 4 m) and customizable speakers/microphones configurations
- advanced sw, with a dedicated software implementation developed in order to allow an easy and user-friendly interface.