Magazine Article

Method of Adjusting Acoustic Impedances for Impedance-Tunable Acoustic Segments

TBMG-26184

01/01/2017

Abstract
Content

NASA’s Langley Research Center researchers have developed an adaptive noise-reduction system that optimizes impedance in an aircraft engine. Aerospace and automotive engineers can take advantage of this innovative system that offers a superior approach to noise dampening. Advantages will be seen in improved noise reduction through all stages of the flight, including takeoff and landing. In addition, the system corrects and adapts to mechanical and chemical changes over the life of the engine liner. The technology employs a honeycomb design with a variable control backing that self-adjusts based on real-time aeroacoustics for maximum effectiveness. The technology can be readily incorporated into existing technologies and transitioned to the marketplace. NASA is seeking market insights on commercialization of this new adaptive noise-reduction technology, and welcomes interest from potential producers, users, and licensees.

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Citation
"Method of Adjusting Acoustic Impedances for Impedance-Tunable Acoustic Segments," Mobility Engineering, January 1, 2017.
Additional Details
Publisher
Published
Jan 1, 2017
Product Code
TBMG-26184
Content Type
Magazine Article
Language
English