scholarly journals Optimization of a Tunable Piezoelectric Resonator Using Phononic Crystals with Periodic Electrical Boundary Conditions

2015 ◽  
Vol 70 ◽  
pp. 258-261 ◽  
Author(s):  
Marie-Fraise Ponge ◽  
Bertrand Dubus ◽  
Christian Granger ◽  
Jérôme Vasseur ◽  
Mai Pham Thi ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
Phononic Crystals ◽  
Piezoelectric Resonator ◽  
Electrical Boundary Conditions

scholarly journals Non-reciprocal behavior of one-dimensional piezoelectric structures with space-time modulated electrical boundary conditions

2019 ◽  
Vol 126 (14) ◽  
pp. 145108 ◽  
Author(s):  
C. Croënne ◽  
J. O. Vasseur ◽  
O. Bou Matar ◽  
A.-C. Hladky-Hennion ◽  
B. Dubus
Keyword(s):  
Boundary Conditions ◽  
Space Time ◽  
One Dimensional ◽  
Electrical Boundary Conditions ◽  
Piezoelectric Structures

scholarly journals Properties ofPb(Zr,Ti)O3ultrathin films under stress-free and open-circuit electrical boundary conditions

2004 ◽  
Vol 70 (22) ◽  
Author(s):  
Emad Almahmoud ◽  
Yulia Navtsenya ◽  
Igor Kornev ◽  
Huaxiang Fu ◽  
L. Bellaiche
Keyword(s):  
Boundary Conditions ◽  
Open Circuit ◽  
Electrical Boundary Conditions

scholarly journals Models of the interaction between electrons and polar optical phonons in nanostructures

2016 ◽  
Vol 55 (4) ◽  
Author(s):  
Brian K. Ridley
Keyword(s):  
Boundary Conditions ◽  
Linear Combination ◽  
Optical Phonons ◽  
Coupled Mode ◽  
Electrical Boundary Conditions ◽  
Optical Modes ◽  
Simple Models

A brief summary is made of the models used to describe the interaction between electrons and polar optical phonons in nanostructures. Simpler models are compared with the model that describes optical modes that satisfy both mechanical and electrical boundary conditions. Satisfaction of these boundary conditions requires modes to be a linear combination (LC) of longitudinal (LO), transverse (TO) and interface (IF) modes. The role of lattice dispersion turns out to be crucial. If accuracy is not essential, the simple models can provide adequate results, provided that coupled-mode and hot-phonon effects are absent.

scholarly journals Static Electromechanical Characteristics of Piezoelectric Converters with various Thickness and Length of Piezoelectric Layers

2019 ◽  
Vol 13 (1) ◽  
pp. 30-36
Author(s):  
Grzegorz Mieczkowski
Keyword(s):  
Analytical Solution ◽  
Boundary Conditions ◽  
Constitutive Equations ◽  
Mechanical Load ◽  
Relative Length ◽  
Piezoelectric Actuators ◽  
Concentrated Force ◽  
Electrical Boundary Conditions ◽  
Piezoelectric Layers ◽  
Particular Solution

Abstract The paper presents the analysis of electromechanical characteristics of piezoelectric converters subjected to an electric field and mechanical load. The analyses were performed based on a method consisting implementation of special segments responsible for electrical boundary conditions to a homogeneous beam. Constitutive equations were developed, allowing one to obtain static electromechanical characteristics for piezoelectric actuators with freely defined boundary conditions and geometry. Moreover, based on constitutive equations obtained, a particular solution for cantilever transducer subjected to concentrated force has been developed. The resulting analytical solution was compared with the data available in the literature, and the developed FEM solution. Furthermore, the influence of factors such as relative length, thickness and location of particular piezoelectric layers on electromechanical characteristics of the transducer was defined.

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