VTechWorks staff will be away for the Thanksgiving holiday beginning at noon on Wednesday, November 27, through Friday, November 29. We will resume normal operations on Monday, December 2. Thank you for your patience.
 

Optimal placement of piezoelectric actuators and polyvinylidene fluoride error sensors in active structural acoustic control approaches

Simple item page
dc.contributorVirginia Tech. Department of Mechanical Engineeringen
dc.contributor.authorClark, Robert L.en
dc.contributor.authorFuller, Chris R.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessed2015-05-12en
dc.date.accessioned2015-05-27T19:50:17Zen
dc.date.available2015-05-27T19:50:17Zen
dc.date.issued1992-09-01en
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
dc.description.sponsorshipUnited States. Defense Advanced Research Projects Agencyen
dc.description.sponsorshipUnited States. Office of Naval Research - Grant No. ONR-N00014-88-K-0721en
dc.format.extent13 pagesen
dc.format.mimetypeapplication/pdfen
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
dc.identifier.doihttps://doi.org/10.1121/1.403944en
dc.identifier.issn0001-4966en
dc.identifier.urihttp://hdl.handle.net/10919/52646en
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/92/3/10.1121/1.403944en
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAcoustic sensingen
dc.subjectStructural acousticsen
dc.subjectMicrophonesen
dc.subjectPiezoelectric devicesen
dc.subjectAcoustic modelingen
dc.titleOptimal placement of piezoelectric actuators and polyvinylidene fluoride error sensors in active structural acoustic control approachesen
dc.title.serialJournal of the Acoustical Society of Americaen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1992_Optimal_placement_piezoelectric.pdf
Size:
1.8 MB
Format:
Adobe Portable Document Format
Download

Collections

Scholarly Works, Mechanical Engineering