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dc.contributorVirginia Tech. Department of Mechanical Engineeringen_US
dc.contributor.authorClark, Robert L.en_US
dc.contributor.authorFuller, Chris R.en_US
dc.date.accessioned2015-05-27T19:50:17Z
dc.date.available2015-05-27T19:50:17Z
dc.date.issued1992-09-01
dc.identifier.citationClark, R. L., & Fuller, C. R. (1992). Optimal placement of piezoelectric actuators and polyvinylidene fluoride error sensors in active structural acoustic control approaches. Journal of the Acoustical Society of America, 92(3), 1521-1533. doi: 10.1121/1.403944en_US
dc.identifier.issn0001-4966en_US
dc.identifier.urihttp://hdl.handle.net/10919/52646
dc.description.abstractOptimization of the location of a rectangular piezoelectric actuator and both the size and location of a rectangular surface strain error sensor constructed from polyvinylidene fluoride (PVDF) for active structural acoustic control (ASAC) is studied in this work. An algorithm is proposed for choosing the optimal actuator/sensor configuration for controlling sound from a baffled simply supported plate excited harmonically, and the resulting acoustic response is predicted from analytical models. These results are compared to those measured in the lab on a test rig duplicating the appropriate boundary conditions and situated in an anechoic chamber. Results from a single optimally located control actuator are compared to those from control with a nonoptimally positioned actuator as well as multiple control actuators. In addition, either microphones are used to provide error information in the test cases or a single optimally located and dimensioned PVDF error sensor is implemented as the cost function. Results from this study indicate that optimization of control actuators and error sensors provides a method for realizing adaptive structures for active structural acoustic control (ASAC), rivaling in importance the performance increases gained when acoustic control is achieved with microphone error sensors and multiple control actuators.en_US
dc.description.sponsorshipUnited States. Defense Advanced Research Projects Agencyen_US
dc.description.sponsorshipUnited States. Office of Naval Research - Grant No. ONR-N00014-88-K-0721en_US
dc.format.extent13 pagesen_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.publisherAcoustical Society of Americaen_US
dc.subjectAcoustic sensingen_US
dc.subjectStructural acousticsen_US
dc.subjectMicrophonesen_US
dc.subjectPiezoelectric devicesen_US
dc.subjectAcoustic modelingen_US
dc.titleOptimal placement of piezoelectric actuators and polyvinylidene fluoride error sensors in active structural acoustic control approachesen_US
dc.typeArticleen_US
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/92/3/10.1121/1.403944en_US
dc.date.accessed2015-05-12en_US
dc.title.serialJournal of the Acoustical Society of Americaen_US
dc.identifier.doihttps://doi.org/10.1121/1.403944
dc.type.dcmitypeTexten_US


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