Scott D. Sommerfeldt
Appl. Res. Lab. and Grad. Prog. in Acoust., Penn State Univ., P. O. Box 30, State College, PA 16804
Sabih I. Hayek
Allan E. Schwenk
Penn State Univ., State College, PA
The subject of structural intensity has been investigated by a number of researchers over the last few years, as a means of gaining an increased understanding of the energy in the structural field. In the area of active control, structural intensity is also of interest for applications that involve energy propagation in the structure. For such cases, controlling the structural intensity, as opposed to the structural vibration, has the potential of providing more effective control of the energy in the structural field. Initial results obtained by implementing an active control system based on structural intensity are presented. The results indicate the potential of obtaining improved control of the structural field, particularly for the case where the sensors are positioned in the near field of the actuators. Some of the issues involved with implementing a control system based on structural intensity are also discussed.