Active gas turbine (jet) engine noise suppression

Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature

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Details

415119, 381 71, 381 731, F02G 100, A61F 1106, H04R 302

Patent

active

053866894

ABSTRACT:
A method and a system for reducing the acoustic levels of internal and external sound fields generated by gas turbine engines has several actuators to generate sound, several sensors to measure the acoustic levels, and one or more controllers, The controllers are adaptive self-learning neural networks that control the actuators to generate sound in order to effect the reduction of the internal and external sound field as measured by the Sensors.

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Widrow, B. & Stearns, S., "Adaptive Signal Processing" 1985 pp. 270-297.

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