SELF-SENSING ACOUSTIC SOURCES FOR INTERIOR NOISE CONTROL OF PAYLOAD FAIRINGS

Sponsor: Air Force Research Lab / AFOSR

Duration: PLACE INFO HERE

Page Last Updated: 1/7/01

Objective:
Develop local control sources for the suppression of low-frequency noise (< 300 Hz) in launch vehicle payload fairings. Results:

Designed, built, and tested a control transducer using piezoelectric materials.
Demonstrated acoustic feedback control on a 2 m cylindrical tube.

Relevant Publications:
Journal Publications (in Review)

Green, K., Leo, D.J., "Piezoceramic-actuated transducer for interior noise control," submitted to the Journal of Intelligent Material Systems and Structures.

Conference Publications

Leo, D.J., Green, K., Mauck, S., 1999, "Sound absorbing transducers for interior noise control," Proceedings of the Active 99 Conference, Ft. Lauderdale, FL, pp. 1205-1214.