Solid-State Ceramic Actuator Designs

Doğan, Aydın; Tressler, James F.; Newnham, R. E.

doi:10.2514/2.1454

Cited by 27 publications

(8 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This mechanism creates a bending mode that mimics piston like displacement. Bimorphs are capable of generating large bending displacements of several hundred micrometers on center or edge, but the response time (1 ms) and the generative force (1.0 N) are low (Dogan et al 2001). In the current study, the Bimorphs used are model T216-A4NO-573X manufactured by Piezoelectric Systems Inc.…”

Section: Methodsmentioning

confidence: 99%

Experimental Design and Analysis of Bimorphs as Synthetic Jet Diaphragms

2006

View full text Add to dashboard Cite

Synthetic jet actuators are promising Active Flow Control (AFC) devices which could lead to saving millions of dollars in fuel consumption each year. The Bimorph piezoelectric actuators are an attractive alternative to other type of actuators as active diaphragms and are the focus of this work. Among the properties of a Bimorph actuator, a number of geometrical and physical external factors may have an effect on its performance as a synthetic jet actuator. Using statistical tools some of the physical and geometrical factors are evaluated as independent variables that may have an effect on the synthetic jet peak velocity, the dependent variable. Among the factors studied are the geometry of the synthetic jet cavity, the driving signal used to operate the active diaphragm, and the effect of a pressure gradient on the device. Among the six factors considered, the driving signal was found to have the highest effect on the peak jet velocity, and the factor of frequency proved to have a smaller effect. The cavity geometrical parameters were also relevant, a smaller orifice and a smaller cavity produce higher peak jet velocities. An adverse pressure gradient was also found to have a significant effect on peak jet velocity, diminishing its magnitude with increasing pressure.

show abstract

Section: Methodsmentioning

confidence: 99%

Experimental Design and Analysis of Bimorphs as Synthetic Jet Diaphragms

2006

View full text Add to dashboard Cite

show abstract

“…Since flextensional transducers make use of flexural modes of an elastic shell, the analysis and modeling required to determine equivalent circuit parameters is considerably more complicated than the longitudinal mode cases discussed earlier, and it is usually necessary to make simplifying approximations. A new type Class 5 flextensional transducer called Moonie/Cymbal was invented in the later of 1980s [51][52][53][54][55], and made significant improvement on the source level and the transmitting voltage response, which are two major parameters to measure underwater acoustic transducer performance [33,47].…”

Section: Piezoelectric Acoustic Transducersmentioning

confidence: 99%

“…Example diagram of flextensional transducers. (a) IV class and (b) cymbal[33].The first flextensional transducer has been attributed to Hayes; however, it was the later work and patent of Toulis that led to the Class IV design, which was modeled by Brigham and later encoded for computer design and analysis by Butler[33,[47][48][49][50][51][52][53][54][55]. Other early flextensional designs by Merchant and Abbott, as well as the modeling by Royster, laid the foundation for more recent designs by Jones and McMahon[56].…”

mentioning

confidence: 99%

“…Other early flextensional designs by Merchant and Abbott, as well as the modeling by Royster, laid the foundation for more recent designs by Jones and McMahon[56]. Dogan and Newnham[53] developed a very compact design, and Butler[57][58][59][60][61][62] extended the flextensional concept in several ways. The most common design is a Class IV type as shown in Figure7(a), which is an oval or elliptical shell driven by a piezoelectric ceramic stack along the major axis of the shell with amplified motion along the direction of the minor axis.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Underwater communication acoustic transducers: a technology review

Shams

2023

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2023

View full text Add to dashboard Cite

This paper provides a comprehensive review on transducer technologies for underwater communications. The popularly used communication transducers, such as piezoelectric acoustic transducers, electromagnetic acoustic transducers, and acousto-optic devices are reviewed in detail. The reasons that common air communication technologies are invalid die to the differences between the media of air and water are addresses. Because of the abilities to overcome challenges the complexity of marine environments, piezoelectric acoustic transducers are playing the major underwater communication roles for science, surveillance, and Naval missions. The configuration and material properties of piezoelectric transducers effects on signal output power, beamwidth, amplitude, and other properties are discussed. The methods of code and decode communication information signals into acoustic waves are also presented. Finally, several newly developed piezoelectric transducers are recommended for future studies.

show abstract

“…In order to improve the performance of piezoelectric actuators, a variety of different designs have been implemented as reviewed by Dogan et al (2001).…”

Section: Introductionmentioning

confidence: 99%

Layerwise Laminate Analysis of Functionally Graded Piezoelectric Bimorph Beams

Lee

2005

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

A layerwise finite element formulation developed for piezoelectric materials is used to investigate the displacement and stress response of a functionally graded piezoelectric bimorph actuator. The formulation is based on the principles of linear thermopiezoelectricity and accounts for the coupled mechanical, electrical, and thermal responses of piezoelectric materials. The layerwise laminate theory is implemented into a linear beam element in order to provide a more accurate representation of the transverse and shear effects that are induced by the increased inhomogeneities introduced through-the-thickness by the functionally graded materials. The accuracy of the formulation is verified with previously published experimental results for a piezoelectric bimorph actuator. Additional studies are conducted to analyze the impact of electric and thermal loads on the deflections and stresses in a bimorph actuator. Results of the study help to demonstrate the capability of the layerwise theory to provide a more complete representation of the through-the-thickness effects that are no longer negligible even in thin piezoelectric beams. In addition, the effects of varying piezoelectric properties through-the-thickness of the beam are shown to provide additional benefits in minimizing the induced deformations and stresses.

show abstract

Solid-State Ceramic Actuator Designs

Cited by 27 publications

References 29 publications

Experimental Design and Analysis of Bimorphs as Synthetic Jet Diaphragms

Experimental Design and Analysis of Bimorphs as Synthetic Jet Diaphragms

Underwater communication acoustic transducers: a technology review

Layerwise Laminate Analysis of Functionally Graded Piezoelectric Bimorph Beams

Contact Info

Product

Resources

About