title: Functionally graded piezoelectric materials for modal transducers for exciting bulk and surface acoustic waves.
abstract: We show that functionally graded piezoelectric materials can be used to make modal actuators through theoretical analyses of the excitation of extensional motion in an elastic rod and Rayleigh surface waves over an elastic half-plane. The results suggest alternatives with certain advantages for the excitation of bulk and surface acoustic waves.
authors.forename: Jiashi
authors.initials: J
authors.lastname: Yang
authors.forename: Zhihe
authors.initials: Z
authors.lastname: Jin
authors.forename: Jiangyu
authors.initials: J
authors.lastname: Li
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D003198:Computer Simulation; D017076:Computer-Aided Design; D004563:Electrochemistry / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008420:Manufactured Materials; D008962:Models, Theoretical; D012542:Scattering, Radiation; D013499:Surface Properties; D014159:Transducers; D014463:Ultrasonography / Q000295:instrumentation*; D014732:Vibration