Results 201 to 210 of about 22,436 (254)

Physics-Informed Neural Network Modeling of Inflating Dielectric Elastomer Tubes for Energy Harvesting Applications. [PDF]

Polymers (Basel)
Askari-Sedeh M, Faraji M, Baniardalan M, Choi E, Ostadrahimi A, Baghani M.   +5 more
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Bioresorbable acoustic patch for simultaneous sealing and early detection of gastric leakage. [PDF]

Sci Adv
Hu J, Xu J, Meng H, Guan K, Li Y, Liu Z, Shen G.   +6 more
europepmc   +1 more source

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ScAlN/AlN Film-Based Lamé Mode Resonator With High Effective Electromechanical Coupling Coefficient

Journal of Microelectromechanical Systems, 2021
The effective electromechanical coupling coefficient ( ${K}_{eff}^{2}{)}$ of resonators is crucial for application in radio communication such as fabricating bandpass filters. In this letter, we present a $0^{\text {th}}$ symmetry ( ${S}_{0}{)}$ mode Lame mode resonator (LMR) operating at 2.563 GHz with a high ${K}_{\vphantom {D_{j}}{
Jie Zhou, Yan Liu, Qinwen Xu, Ying Xie, Yao Cai, Jieyu Liu, Wenjuan Liu, Alexander Tovstopyat, Chengliang Sun   +8 more
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Effective Electromechanical Coupling Coefficients of Piezoelectric Adaptive Structures: Critical Evaluation and Optimization

Mechanics of Advanced Materials and Structures, 2009
This work presents a critical analysis of methodologies to evaluate the effective (or generalized) electromechanical coupling coefficient (EMCC) for structures with piezoelectric elements. First, a review of several existing methodologies to evaluate material and effective EMCC is presented. To illustrate the methodologies, a comparison is made between
Marcelo Trindade, Ayech Benjeddou
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Influence of electrodes on the effective electromechanical coupling coefficient distributions of high-overtone bulk acoustic resonator

Ultrasonics, 2015
In this paper, the influence of the electrodes on effective electromechanical coupling coefficient k(2)eff distribution of high-overtone bulk acoustic resonators (HBAR) is investigated using the four-layer thickness extension mode composite resonator model.
Mengwei, Liu, Jian, Li, Chenghao, Wang, Junhong, Li, Jun, Ma   +4 more
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On the optimization of the effective electromechanical coupling coefficients of a piezoelectric body

The Journal of the Acoustical Society of America, 2003
Effective electromechanical coupling coefficients are defined based on the expression for the internal energy of a piezoelectric body [B. S. Aronov, “Energy analysis of a piezoelectric body under nonuniform deformation,” J. Acoust. Soc. Am. 113, 2638–2646 (2003)].
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Effective electromechanical coupling coefficient ( keff2 ) enhancement of a Lamb wave resonator with trapezoid grooves configuration

Applied Physics Express, 2023
Abstract A first-order ( S 1
Yuchen Fan, Jie Zhou, Qinwen Xu, Xin Tong, Ying Xie, Yang Zou, Jiaqi Ding, Chao Gao, Binghui Lin, Wenjuan Liu, Yan Liu, Yao Cai, Chengliang Sun   +12 more
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The effective electromechanical coupling coefficient of piezoelectric thin-film resonators

Applied Physics Letters, 2005
The input electric impedance Zin for a three-layer thin-film bulk acoustic wave resonator is derived by transfer matrix method to describe the resonator behavior. Based on the impedance spectra, the effective coupling coefficient keff2 of a thin-film resonator can be evaluated with respect to the resonator structure and thin-film properties.
Qingming Chen, Qing-Ming Wang
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Damage indication in smart structures using modal effective electromechanical coupling coefficients

Smart Materials and Structures, 2008
This work explores the use, in structural health monitoring, of the so-called modal effective electromechanical coupling coefficient (EMCC) as a damage indicator for structures with failures such as cracks. For this purpose, a discrete layered finite element (FE) model for smart beams is proposed and applied to short-circuit (SC) and open-circuit (OC ...
M A Al-Ajmi, A Benjeddou
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