An Investigation of the use of Spatial Derivatives in Active Structural Acoustic Control

Salt Lake Community College Student Center

A new parameter was recently developed by Jeffery M. Fisher (M.S.) for use in Active Structural Acoustic Control (ASAC) which showed potential for achieving better sound radiation reduction than current parameters. This parameter, known as “Vcomp,” uses spatial derivatives to approximate radiation mode shapes and was shown analytically to produce results comparable to control of radiated sound power and volume velocity on a simply supported plate. However, Fisher’s experimental tests were less than encouraging. This paper details efforts being made to improve the experimental results and to better understand the challenges of using Vcomp for active structural acoustic control.