Simplification of Seats in Models for Interior Noise Prediction of Aircraft

When interior noise of aircraft to be predicted with statistical energy analysis(SEA) method,subsystems of seats should be modeled in simulative models for enough precision.In order to simplify models and improve efficiency of modeling,the relationship between sound absorption of seats and damping loss factor of sound cavity subsystem of cabin was presented.Consequently,simplification method based on formula and SEA theory was proposed.With the use of fuselage acoustic test facility,the simplification method was validated.