Adaptive Noise Cancellation System for Low Frequency Transmission of Sound in Open Fan Aircraft

Adaptive Noise Cancellation System for Low Frequency Transmission of Sound in Open Fan Aircraft

Blog Article

This paper describes the use of a structural/acoustic model of a section of a large aircraft to help define the sensor/actuator architecture that was used in a hardware Jeans demonstration of adaptive noise cancellation.Disturbances considered were representative of propeller-induced disturbances from an open fan aircraft.Controller on and controller off results from a hardware read more demonstration on a portion of a large aircraft are also included.

The use of the model has facilitated the development of a new testing technique, closely related to modal testing, that can be used to find good structural actuator locations for adaptive noise cancellation.