Paper
8 September 1993 Impact of piezoelectric sensoriactuators on active structural acoustic control
William R. Saunders, Daniel G. Cole, Harry H. Robertshaw
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Abstract
The development of simultaneous sensing and actuation for a single piezoelectric element, called a sensoriactuator in this paper, provides the opportunity for truly collocated control in adaptive structures. Issues related to collocation are discussed in terms of their effects on active structural acoustic control (ASAC). A variation on earlier feedback ASAC methods, direct radiation feedback (DRFB), is suggested for the sensoriactuator adaptive structure. The DRFB method relies on a discrete-point formulation of the associated radiated energy norm. The influence of the acoustic dynamics on proven sufficient conditions for globally stable collocated velocity feedback is discussed for the first time. Selection of an appropriate Lyapunov function for the stability analysis of collocated DRFB is discussed and compared to previous results for direct velocity feedback in active vibration control.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William R. Saunders, Daniel G. Cole, and Harry H. Robertshaw "Impact of piezoelectric sensoriactuators on active structural acoustic control", Proc. SPIE 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems, (8 September 1993); https://doi.org/10.1117/12.152792
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CITATIONS
Cited by 2 scholarly publications.
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KEYWORDS
Sensors

Acoustics

Optical filters

Intelligence systems

Feedback control

Smart structures

Actuators

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