2018
DOI: 10.1115/1.4039535
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Voltage-Induced Snap-Through of an Asymmetrically Laminated, Piezoelectric, Thin-Film Diaphragm Micro-Actuator—Part 1: Experimental Studies and Mathematical Modeling

Abstract: A piezoelectric thin-film microactuator in the form of an asymmetrically laminated diaphragm is developed as an intracochlear hearing aid. Experimentally, natural frequencies of the microactuator bifurcate with respect to an applied bias voltage. To qualitatively explain the findings, we model the lead-zirconate-titanate (PZT) diaphragm as a doubly curved, asymmetrically laminated, piezoelectric shallow shell defined on a rectangular domain with simply supported boundary conditions. The von Karman type nonline… Show more

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“…The unique snap-through mechanism could also be used to qualitatively explain the experimental measurement reported in Fig. 2 of Part 1 [1].…”
Section: Introductionmentioning
confidence: 89%
“…The unique snap-through mechanism could also be used to qualitatively explain the experimental measurement reported in Fig. 2 of Part 1 [1].…”
Section: Introductionmentioning
confidence: 89%