000013541 001__ 13541
000013541 005__ 20161114165845.0
000013541 04107 $$aeng
000013541 046__ $$k2011-05-25
000013541 100__ $$aZehetner, Ch.
000013541 24500 $$aPiezoelectric Torsional Sensors and Actuators - a Computational Study

000013541 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013541 260__ $$bNational Technical University of Athens, 2011
000013541 506__ $$arestricted
000013541 520__ $$2eng$$aThis paper concerns a computational study on the realization of piezoelectric torsional actuators and sensors. Exemplarily, a rod with rectangular solid cross-section is considered consisting of a linear elastic substrate material on which orthotropic piezoelectric layers are bonded. On the one hand side, piezoelectric actuation is obtained by applying voltage to the electrodes of the piezoelectric layer. Secondly, the layers can be used as sensors by measuring the voltage on the electrodes which is caused by external torsional loads. Three material types are compared for possible realisations: ammonium dihydrogen phosphate (ADP) and two types of macro fiber composites (MFC). In the framework of Saint Venant’s theory of torsion, the actuator and sensor equations are formulated: The actuating torsional moment is proportional to the applied voltage, and the sensor voltage is proportional to the torsional angle. Finally, the results are validated by means of three-dimensional Finite Element computations.

000013541 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013541 653__ $$aTorsion, piezoelectric rod, piezoelectric actuation, piezoelectric sensor, macro fiber composites

000013541 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013541 720__ $$aZehetner, Ch.$$iZellhofer, M.$$iKrommer, M.
000013541 8560_ $$ffischerc@itam.cas.cz
000013541 8564_ $$s396668$$uhttps://invenio.itam.cas.cz/record/13541/files/258.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 03 Advances in Computational Structural Vibrations.
000013541 962__ $$r13401
000013541 980__ $$aPAPER