Dynamic adaptivity of "smart" piezoelectric structures

1990 ◽  
Author(s):  
Horn-Sen Tzou ◽  
Jianping P. Zhong
Keyword(s):  
Piezoelectric Structures

scholarly journals Analytical Modeling and Simulation of S-Drive Piezoelectric Actuators

Actuators ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 87
Author(s):  
Nicholas A. Jones ◽  
Jason Clark
Keyword(s):  
Element Model ◽  
Mechanical Efficiency ◽  
Compact Model ◽  
High Frequency Response ◽  
Macro Scale ◽  
Piezoelectric Structure ◽  
Modern Manufacturing ◽  
Manufacturing Techniques ◽  
Piezoelectric Structures ◽  
Improve Device

This paper presents a structural geometry for increasing piezoelectric deformation, which is suitable for both micro- and macro-scale applications. New and versatile microstructure geometries for actuators can improve device performance, and piezoelectric designs benefit from a high-frequency response, power density, and efficiency, making them a viable choice for a variety of applications. Previous works have presented piezoelectric structures capable of this amplification, but few are well-suited to planar manufacturing. In addition to this manufacturing difficulty, a large number of designs cannot be chained into longer elements, preventing them from operating at the macro-scale. By optimizing for both modern manufacturing techniques and composability, this structure excels as an option for a variety of macro- and micro-applications. This paper presents an analytical compact model of a novel dual-bimorph piezoelectric structure, and shows that this compact model is within 2% of a computer-distributed element model. Furthermore it compares the actuator’s theoretical performance to that of a modern actuator, showing that this actuator trades mechanical efficiency for compactness and weight savings.

Wave propagation in layered piezoelectric structures

1998 ◽  
Vol 83 (9) ◽  
pp. 4652-4659 ◽  
Author(s):  
A. A. Mesquida ◽  
J. A. Otero ◽  
R. R. Ramos ◽  
F. Comas
Keyword(s):  
Wave Propagation ◽  
Piezoelectric Structures

Temperature Characteristics of Magnetoelectric Effect in Bilayer Ferromagnetic-Piezoelectric Structures

2015 ◽  
Vol 233-234 ◽  
pp. 357-359 ◽  
Author(s):  
Dmitry Burdin ◽  
Dmitry Chashin ◽  
Nikolay Ekonomov ◽  
Yuri Fetisov
Keyword(s):  
Magnetic Field ◽  
Resonant Frequency ◽  
Temperature Dependence ◽  
Lead Zirconate Titanate ◽  
Magnetoelectric Effect ◽  
Lead Zirconate ◽  
Magnetic Field Sensors ◽  
Temperature Characteristics ◽  
Magnetoelectric Coefficient ◽  
Piezoelectric Structures

Temperature characteristics of resonant magnetoelectric effect in bilayer structures consisting of langatate, lead zirconate titanate, nickel, and amorphous ferromagnetic Metglas layers have been investigated. The measurements were performed in the temperature range of 150-400 K. The influence of the ferromagnetic and piezoelectric layer’s parameters on the temperature dependence of resonant frequency and magnetoelectric coefficient αE has been demonstrated. The results can be used to develop magnetoelectric magnetic field sensors.

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