Mechanisms of active control for noise inside a vibrating cylinderThe active control of propeller-induced noise fields inside a flexible cylinder is studied with attention given to the noise reduction mechanisms inherent in the present coupled acoustic shell model. The active noise control model consists of an infinitely long aluminum cylinder with a radius of 0.4 m and a thickness of 0.001 m. Pressure maps are shown when the two external sources are driven in-phase at a frequency corresponding to Omega = 0.22.
Document ID
19880052495
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lester, Harold C. (NASA Langley Research Center Hampton, VA, United States)
Fuller, Chris R. (Virginia Polytechnic Institute and State University Blacksburg, United States)