In:
Coatings, MDPI AG, Vol. 10, No. 5 ( 2020-04-29), p. 437-
Abstract:
Layered piezo-composite unimorph actuators have been studied by many research teams to provide active vibration control of thin-walled aerospace structures, control the shapes of aircraft wing airfoils, and control the fins of small missiles, because they require less space and provide better frequency responses than conventional electro-magnetic motor actuator systems. However, due to the limited actuation strains of conventional piezo-composite unimorph actuators with poly-crystalline piezoelectric ceramic layers, they have not been implemented effectively as actuators for small aerospace vehicles. In this study, a lightweight piezo-composite unimorph actuator (LIPCA-S2) was manufactured and analyzed to predict its flexural actuation displacement. It was found that the actuated tip displacement of a piezo-composite cantilever could be predicted accurately using the proposed prediction model based on the nonlinear properties of the piezoelectric strain coefficient and elastic modulus of a piezoelectric single crystal.
Type of Medium:
Online Resource
ISSN:
2079-6412
DOI:
10.3390/coatings10050437
Language:
English
Publisher:
MDPI AG
Publication Date:
2020
detail.hit.zdb_id:
2662314-6
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