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Journal articles on the topic 'Electro-mechanical Coupling'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Doi, Masao, Katsunori Takahashi, Takashi Yonemoto, and Tatsuya Yamaue. "Electro-mechanical coupling in ionic gels." Reactive and Functional Polymers 73, no. 7 (July 2013): 891–93. http://dx.doi.org/10.1016/j.reactfunctpolym.2012.12.008.

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2

Stoykov, S., and E. Manoach. "Electro-mechanical coupling of rotating 3D beams." MATEC Web of Conferences 83 (2016): 05011. http://dx.doi.org/10.1051/matecconf/20168305011.

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3

Cohen, Joel A., Ming Tzo Wei, and H. Daniel Ou-Yang. "Electro-Mechanical Coupling in Charged Liposome Suspensions." Biophysical Journal 106, no. 2 (January 2014): 502a. http://dx.doi.org/10.1016/j.bpj.2013.11.2810.

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4

Lüdecke, Fiona Dominique, Martin Schmid, Eva Rehe, Sangamithra Panneer Selvam, Nejila Parspour, and Po Wen Cheng. "Numerical Aspects of a Two-Way Coupling for Electro-Mechanical Interactions—A Wind Energy Perspective." Energies 15, no. 3 (February 5, 2022): 1178. http://dx.doi.org/10.3390/en15031178.

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Generators in wind turbines are the key components to convert mechanical into electrical power. They are subject to electrical and mechanical excitation at the same time, which can cause electro-mechanical interactions. To avoid unwanted interactions, standard design approaches use conservative, stiff designs that lead to heavy generators of several hundred tons. New wind turbine designs, beyond 10 MW, need to revisit the conservative design approach as the tower top mass needs to be limited. To reduce the generator’s mass without large deformation that can damage the wind turbine, a better understanding of electro-mechanical interactions is key. This requires a detailed model including both the mechanical and the magnetic forces. This work presents a numerical setup of a coupled electromagnetic-structural multi-body model. While existing couplings are application-specific; the presented coupling is independent of the actual use case and allows for transient dynamic two-way coupled analyses. For validation, an experimental setup with basic components is introduced. The results show the applicability of the developed coupling for detailed analysis of general electro-mechanical interactions.

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5

Kanan, Anas, Aleksandr Vasilev, Cornelia Breitkopf, and Michael Kaliske. "Thermo-Electro-Mechanical Simulation of Electro-Active Composites." Materials 15, no. 3 (January 20, 2022): 783. http://dx.doi.org/10.3390/ma15030783.

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In this contribution, a computational thermo-electro-mechanical framework is considered, to simulate coupling between the mechanical, electrical and thermal fields, in nonhomogeneous electro-active materials. A thermo-electro-mechanical material model and a mixed Q1P0 finite element framework are described and used for the simulations. Finite element simulations of the response of heterogeneous structures consisting of a soft matrix and a stiff incluison are considered. The behavior of the composite material is studied for varying initial temperatures, different volume fractions and various aspect ratios of the inclusion. For some of the examples, the response of the structure beyond a limit point of electro-mechanical instability is traced. Regarding the soft matrix of the composite, thermal properties of silicone rubber at normal conditions have been obtained by molecular dynamics (MD) simulations. The material parameters obtained by MD simulations are used within the finite element simulations.

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6

Jiang, Wenguang, Cheng Zhang, Pengshuo Jia, Guishan Yan, Rui Ma, Gexin Chen, Chao Ai, and Tiangui Zhang. "A Study on the Electro-Hydraulic Coupling Characteristics of an Electro-Hydraulic Servo Pump Control System." Processes 10, no. 8 (August 5, 2022): 1539. http://dx.doi.org/10.3390/pr10081539.

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Electro-hydraulic servo pump control belongs to an electro-hydraulic coupling motion control system, which involves the mutual penetration and integration of mechanical, hydraulic, electrical, control, and other disciplines, as well as the time-varying, uncertain, multisource, and multifield problems of the internal and external excitation of the system, which makes the electro-hydraulic servo pump control system have the characteristics of a complex model, strong coupling, nonlinearity, and time-variation, resulting in the low accuracy and poor dynamic characteristics of the system. This paper takes a servo motor quantitative pump hydraulic cylinder load as the main dynamic line; divides the electro-hydraulic servo pump control system into a motor pump unit, a hydraulic transmission unit and a power output unit; analyzes its electromechanical coupling characteristics, pressure flow coupling characteristics, and mechanical–hydraulic coupling characteristics, respectively; studies the multiparameter characteristics of the system under the electromechanical–hydraulic coupling conditions; and summarizes the influence laws between the parameters. Finally, through a MATLAB/Simulink simulation, it provides a theoretical basis and guidance for high-performance control of the system.

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7

Chen, Bo, and Bao Yin Li. "Analysis and Research on Modeling Methods of Mems Coupling Dynamic System of Ultrasonic Motor." Applied Mechanics and Materials 533 (February 2014): 303–6. http://dx.doi.org/10.4028/www.scientific.net/amm.533.303.

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The ultrasonic motor is a complex dynamic system, which be divided into an electro-mechanical coupling system and a drive and control system. The core of the electro-mechanical coupling system lies in excitation of elliptical movement of the mass points on the surface of the stator and frictional transfer of the power and the movement. Modeling of the electro-mechanical coupling dynamic system of the ultrasonic motor substantially comprises two aspects. First, the dynamic system is viewed as an integral transfer function, and an intuitive relationship between input of the electric energy and output of the power is established. Second, geometric parameters and material parameters of mechanisms are closely correlated with dynamics of the mechanisms.

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8

Yan, Shao Ze, Fu Xing Zhang, and Shi Zhu Wen. "Electro-Mechanical Coupling Performances of a Piezoelectric Bimorph." Key Engineering Materials 336-338 (April 2007): 327–30. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.327.

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The influence of electro-mechanical operation conditions on the actuation capabilities of the piezoelectric bimorph is investigated in this paper. The objective is to compare the performance of the piezoelectric bimorph in different operation conditions and to determine the optimum operating conditions. An experimental set-up is built, and a series of experiments are presented to investigate the static and dynamic characteristics of the bimorph, including tip displacements of the bimorph under different preloads, dynamic response at different drive frequencies, step response and creep. Some properties such as displacement output, force output and hysteresis of the piezoelectric bimorph under different operating conditions are evaluated. Experimental results indicate strong dependence of both elastic and piezoelectric properties of the bimorph on the operating conditions.

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9

Zhang, ShuQing, XiaoLong Zou, and HuiMing Cheng. "Mechanical-electro-magnetic coupling in strained bilayer CrI3." Science China Technological Sciences 63, no. 7 (May 27, 2020): 1265–71. http://dx.doi.org/10.1007/s11431-019-1585-8.

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10

Jiang, Jie, Qiuqi Chen, Shengdong Hu, Yijun Shi, Zhiyuan He, Yun Huang, Caixin Hui, Yiqiang Chen, Hao Wu, and Guoguang Lu. "Effect of Electro-Thermo-Mechanical Coupling Stress on Top-Cooled E-Mode AlGaN/GaN HEMT." Materials 16, no. 4 (February 10, 2023): 1484. http://dx.doi.org/10.3390/ma16041484.

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This work investigated the effects of single stress and electro-thermo-mechanical coupling stress on the electrical properties of top-cooled enhancement mode (E-mode) Aluminium Gallium Nitride/Gallium Nitride (AlGaN/GaN) high electron mobility transistor (HEMT) (GS66508T). Planar pressure, linear deformation, punctate deformation, environmental temperature, electro-thermal coupling, thermo-mechanical coupling, and electro-thermo-mechanical coupling stresses were applied to the device. It was found that different kinds of stress had different influence mechanisms on the device. Namely, excessive mechanical pressure/deformation stress caused serious, irrecoverable degradation of the device’s leakage current, with the gate leakage current (Ig) increasing by ~107 times and the drain-to-source leakage current (Idss) increasing by ~106 times after mechanical punctate deformation of 0.5 mm. The device characteristics were not restored after the mechanical stress was removed. Compared with three mechanical stresses, environmental thermal stress had a greater influence on the device’s transfer characteristic and on-resistance (Ron) but far less influence on Ig and Idss. As was expected, multiple stress coupled to the device promoted invalidation of the device. For more in-depth investigation, finite element simulation carried out with COMSOL was used to analyze the effect of electro-thermo-mechanical coupling stress on top-cooled E-mode AlGaN/GaN HEMT. The results of the experiments and simulation demonstrated that single and coupled stresses, especially mechanical stress coupled with other stresses, degraded the electrical properties or even caused irreversible damage to top-cooled E-mode AlGaN/GaN HEMT. Mechanical stress should be reduced as much as possible in the packaging design, transportation, storage, and application of top-cooled E-mode AlGaN/GaN HEMT.

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11

Wang, Zi Lei, and Tian De Qiu. "Analysis of the Electro-Mechanical Responses of the Piezoelectric Motor Based on Finite Element Method." Applied Mechanics and Materials 697 (November 2014): 181–86. http://dx.doi.org/10.4028/www.scientific.net/amm.697.181.

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The piezoelectric field and structure field of piezoelectric resonator of ultrasonic motor are intercoupling. It is difficult to obtain the solution under some circumstances because of the complex stress boundary condition and the influence of coupling effect. An electro-mechanical coupling finite-element dynamic equation is established on the basis of the Hamilton’s Principle about piezoceramic and elastomer. The equation is decoupled through the shock excitation of the piezoelectric resonator and the piezoelectricity element and material provided by finite-element analysis. As a result, an admittance curve as well as the distribution status of the nodal DOF is obtained, which provides an effective method to solve electro-mechanical coupling problems.

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12

Hsu, Hsiang Chen, Shen Wen Ju, Jie Rong Lu, and Yue Min Wan. "Electromigration Analysis and Electro-Thermo-Mechanical Design for Package-on-Package (POP)." Advanced Materials Research 126-128 (August 2010): 929–34. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.929.

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An electro-thermo coupling finite element model is developed to investigate the electromigration and electro-thermo-mechanical effects on electronic packaging. Sn4.0Ag0.6Cu (SAC405) solder ball are commonly used on POP package in this research. Current density arising in the Copper trace above SAC405 solder ball implies the hot spot where results in an electromigration along the current direction. Finite element predictions reveal the peak electro-thermo-mechanical effective stress is located at the regions where electromigration potentially occurred. Current crowding, temperature distribution and electro-thermo induced effective stress distribution are predicted. A submodel scheme is applied for evaluation of equivalent life time of solder ball. Reliability analysis on electro-thermo-mechanical for SAC405 solder ball is evaluated.

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13

Alessandroni, Silvio, Francesco dell'Isola, and Fabrizio Frezza. "Optimal piezo-electro-mechanical coupling to control plate vibrations." International Journal of Applied Electromagnetics and Mechanics 13, no. 1-4 (December 17, 2002): 113–20. http://dx.doi.org/10.3233/jae-2002-488.

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14

Wei, Tianli, Dewei Wu, Qiang Miao, and Chunyan Yang. "Enhanced microwave-optical conversion via ancillary electro-mechanical coupling." Results in Physics 35 (April 2022): 105347. http://dx.doi.org/10.1016/j.rinp.2022.105347.

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15

Anderson, Michael J., Tony J. Anderson, William Zornik, Christopher Hocut, and Jonathan D. Blotter. "Tuned passive vibration suppression using linear electro‐mechanical coupling." Journal of the Acoustical Society of America 108, no. 5 (November 2000): 2478. http://dx.doi.org/10.1121/1.4743142.

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16

Bouranta, K., G. A. Malegiannakis, and B. Kröplin. "Thermo‐electro‐mechanical coupling problems solved by FE‐formulation." Engineering Computations 15, no. 6 (September 1998): 804–28. http://dx.doi.org/10.1108/eum0000000004538.

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17

Colli Franzone, P., L. F. Pavarino, and S. Scacchi. "Parallel multilevel solvers for the cardiac electro-mechanical coupling." Applied Numerical Mathematics 95 (September 2015): 140–53. http://dx.doi.org/10.1016/j.apnum.2014.11.002.

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18

Rochus, V., D. J. Rixen, and J. C. Golinval. "Monolithic modelling of electro-mechanical coupling in micro-structures." International Journal for Numerical Methods in Engineering 65, no. 4 (2005): 461–93. http://dx.doi.org/10.1002/nme.1450.

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19

Rothe, Steffen, Jan Henrik Schmidt, and Stefan Hartmann. "Analytical and numerical treatment of electro-thermo-mechanical coupling." Archive of Applied Mechanics 85, no. 9-10 (November 27, 2014): 1245–64. http://dx.doi.org/10.1007/s00419-014-0948-5.

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20

Fang, Dai Ning, Xu Jun Zhao, Yong Mao Pei, Zhan Wei Liu, Fa Xin Li, and Xue Feng. "Experimental Study on Electro-Magneto-Mechanical Behaviour of Electromagnetic Solids." Key Engineering Materials 326-328 (December 2006): 5–12. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.5.

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New experiment systems that can offer electromechanical and electromagnetic coupling loads were established. Measurement skills and technologies under coupling loads have been developed. The experimental difficulties and technical problems, such as insulation, discharge, compressive testing of brittle ferroelectrics and so on, were well resolved. The constitutive experiments of piezo/ferroelectrics or ferromagnetic materials were carried out. Moiré Interferometry was applied to the measurement of transformation of the crack tip in ferroelectric ceramics under coupling loads. The deformation concentration near the internal electrode tip caused by non-uniform electric field was investigated by means of Digital Speckle Correlation Method (DSCM). With an aim to accomplish both measurements of constitutive response of the magnetostrictive materials and the fracture experiments of general soft ferromagnetic materials, a magnetomechanical-coupling testing setup was established, which is controlled by an industrial PC. The software was programmed to monitor the testing process and to deal with the acquired data. The characteristic curves of ferromagnetic materials, such as TbxDy1-xFe2 alloys, were measured, including the hysteresis loops, the magnetostriction curve and stress-strain curve.

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21

Chen, Yuhang, Maomao Zhang, Yaxuan Su, and Zhidong Zhou. "Coupling Analysis of Flexoelectric Effect on Functionally Graded Piezoelectric Cantilever Nanobeams." Micromachines 12, no. 6 (May 21, 2021): 595. http://dx.doi.org/10.3390/mi12060595.

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The flexoelectric effect has a significant influence on the electro-mechanical coupling of micro-nano devices. This paper studies the mechanical and electrical properties of functionally graded flexo-piezoelectric beams under different electrical boundary conditions. The generalized variational principle and Euler–Bernoulli beam theory are employed to deduce the governing equations and corresponding electro-mechanical boundary conditions of the beam model. The deflection and induced electric potential are given as analytical expressions for the functionally graded cantilever beam. The numerical results show that the flexoelectric effect, piezoelectric effect, and gradient distribution have considerable influences on the electro-mechanical performance of the functionally graded beams. Moreover, the nonuniform piezoelectricity and polarization direction will play a leading role in the induced electric potential at a large scale. The flexoelectric effect will dominate the induced electric potential as the beam thickness decreases. This work provides helpful guidance to resolve the application of flexoelectric and piezoelectric effects in functionally graded materials, especially on micro-nano devices.

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22

TANG, F., S. L. HUANG, X. L. HU, and J. T. WANG. "ELECTRO-MECHANICAL COUPLING CHARACTERISTICS OF PZT FOR SENSOR AND ACTUATOR APPLICATION." International Journal of Modern Physics B 13, no. 29n31 (December 20, 1999): 3823–26. http://dx.doi.org/10.1142/s0217979299003994.

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Piezoelectric ceramics are good candidate materials for sensor and actuator applications, because of its ability to convert mechanical energy to electrical energy and vice versa. The response speed of Electro-mechanical converting signal in piezoelectric transducers is up to a few hundreds kilohertz. Therefore, they are widely used in vibration and acoustic system. In these applications, the nonlinearity of the materials is a main factor to consider when one designs the control system. In this paper, the nonlinearity of electro-mechanical coupling of PbZrxTi(1-x)O3 was investigated. Experimental results showed that the piezoelectric properties of PZT are greatly affected by the sequence and the amplitude of the applied voltage.

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23

Tsai, Wan-Yu, and Nina Balke. "Probing Electrode Electro-Chemo-Mechanical Coupling Behaviors through Mechanical Cyclic Voltammetry (mCV)." ECS Meeting Abstracts MA2020-02, no. 62 (November 23, 2020): 3182. http://dx.doi.org/10.1149/ma2020-02623182mtgabs.

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24

Zhang, Shuwen, Shubao Shao, Xuxu Yang, Peijian Chen, Hui Ji, Kaiyuan Liu, Tonghui Wu, Shengping Shen, and Minglong Xu. "An enhanced flexoelectric dielectric elastomer actuator with stretchable electret." Smart Materials and Structures 30, no. 12 (October 25, 2021): 125004. http://dx.doi.org/10.1088/1361-665x/ac2de1.

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Abstract Actuation has been applied with dielectric elastomers (DE) in soft robotics and bio-mimic devices due to their ultra-large deformation range, easy patterning, light weight, and they are highly expected for high electro-mechanical efficiency and low stimulating power. Flexoelectricity describes the strain gradient-induced electric polarization, which is strongly related to geometry and deformation ranges. The electro-mechanical coupling effect with flexoelectricity in elastomeric materials are then highly expected. In this work, elastic modulus gradient of a DE actuator is designed for bending motion by flexoelectricity, and electric charge is inserted and immobilized inside the material to further enhance the electro-mechanical capability. Elastic modulus gradient is designed, and electric charges are immobilized to enlarge the electro-mechanical coupling efficiencies of this flexoelectric actuator. The bending angle of the actuator is inversely proportional to the cube of general thickness of actuator, and the immobilized electric charge extensively enlarged the actuation capability. With elastic modulus gradient and electret, the actuating bending angle is enlarged with low stimulating voltage. This work provides an enhanced flexoelectric actuating method with material and mechanical design, and highlights low-voltage actuating approach with piezoelectric-like effect of stretchable electrets.

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25

Fu, Yu, Xingzhong Tang, Qilin Jin, and Zhen Wu. "An Alternative Electro-Mechanical Finite Formulation for Functionally Graded Graphene-Reinforced Composite Beams with Macro-Fiber Composite Actuator." Materials 14, no. 24 (December 16, 2021): 7802. http://dx.doi.org/10.3390/ma14247802.

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With its extraordinary physical properties, graphene is regarded as one of the most attractive reinforcements to enhance the mechanical characteristics of composite materials. However, the existing models in the literature might meet severe challenges in the interlaminar-stress prediction of thick, functionally graded, graphene-reinforced-composite (FG-GRC)-laminated beams that have been integrated with piezoelectric macro-fiber-composite (MFC) actuators under electro-mechanical loadings. If the transverse shear deformations cannot be accurately described, then the mechanical performance of the FG-GRC-laminated beams with MFC actuators will be significantly impacted by the electro-mechanical coupling effect and the sudden change of the material characteristics at the interfaces. Therefore, a new electro-mechanical coupled-beam model with only four independent displacement variables is proposed in this paper. Employing the Hu–Washizu (HW) variational principle, the precision of the transverse shear stresses in regard to the electro-mechanical coupling effect can be improved. Moreover, the second-order derivatives of the in-plane displacement parameters have been removed from the transverse-shear-stress components, which can greatly simplify the finite-element implementation. Thus, based on the proposed electro-mechanical coupled model, a simple C0-type finite-element formulation is developed for the interlaminar shear-stress analysis of thick FG-GRC-laminated beams with MFC actuators. The 3D elasticity solutions and the results obtained from other models are used to assess the performance of the proposed finite-element formulation. Additionally, comprehensive parametric studies are performed on the influences of the graphene volume fraction, distribution pattern, electro-mechanical loading, boundary conditions, lamination scheme and geometrical parameters of the beams on the deformations and stresses of the FG-GRC-laminated beams with MFC actuators.

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26

Meng, Bin, Chenhang Zhu, Hao Xu, Mingzhu Dai, and Sheng Li. "Analytical and Experimental Investigations of Novel Maglev Coupling Based on Opposed Halbach Array for a 2D Valve." Actuators 10, no. 3 (March 17, 2021): 61. http://dx.doi.org/10.3390/act10030061.

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In this paper, a novel maglev coupling based on the opposed Halbach array is proposed as the interface between the linear electro-mechanical converter and 2D valve body. This non-contact maglev coupling possesses several advantages over existing mechanical couplings such as zero friction and wear, low vibration and noise, and no lubrication, which is expected to greatly improve the control accuracy and life cycle of the 2D valve. A detailed analytical model of maglev coupling is established based on the electro-magnetic theory. Firstly, the permanent magnets of the Halbach array is decomposed into several types of basic elements to obtain their individual analytical expressions, which are then re-superimposed into the whole coupling to obtain the analytical formula of torque–displacement characteristics. In order to obtain maximum output torque of maglev coupling, a parametric analysis was performed using an analytical model and optimal pitch angle and shifted distance was explored and found. To verify the correctness of the analytical modelling and parametric analysis results, the torque–displacement characteristics were also studied through both the FEM simulation and experimental approach. The results of analytical modelling, FEM simulation and experiment were in a good agreement, which shows that the maximum magnetic torque can reach about 0.579 N·m when the external armature displacement is 1 mm. The research work provides an important reference for the future application of maglev coupling in a 2D valve.

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27

Huang, Shichun, Liang Yu, and Weikang Jiang. "Measurement of loudspeaker mechanical impedance by changing the sound load at the throat of loudspeaker." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 1 (August 1, 2021): 5457–66. http://dx.doi.org/10.3397/in-2021-3112.

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A loudspeaker is a device that converts electrical energy into acoustic energy by coupling between electrical impedance, mechanical impedance, and radiation impedance. The loudspeaker electro-mechanical-acoustic coupling model provides the experimental feasibility to measure the characteristic parameters. In this paper, an economical and practical measurement method of loudspeaker mechanical impedance is proposed. First, the mathematical relationship between loudspeaker electrical impedance and mechanical impedance is obtained based on the loudspeaker electro-mechanical-acoustic coupling model. Second, two electrical impedances with different known radiation impedance are measured by using a developed measurement system. Finally, the real and imaginary parts of the mechanical impedance are obtained according to the mathematical relationship. This method neither assumes that the loudspeaker mechanical impedance is constant in a frequency band nor does it build FEM models based on structural parameters. A loudspeaker is measured by using a developed measurement system. The result shows that the mechanical impedance and the force factor are functions of frequency. Moreover, a radiation impedance measurement is performed to verify the feasibility and accuracy of the proposed method.

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28

Yang, Chi Fu, Qi Tao Huang, and Jun Wei Han. "Singular Value Decomposition Control of Electro-Hydraulically Driven Parallel Robot." Applied Mechanics and Materials 121-126 (October 2011): 90–94. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.90.

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This paper presented a novel control scheme for electro-hydraulically driven parallel robot, in order to improve control performance by eliminating the effect of system coupling in controller. The mathematical model of the electro-hydraulic parallel robot is formulated, including mechanical system and electro-hydraulic system, using Kane method and hydromechanics principle. The decoupled space is exploited for electro-hydraulic parallel robot by using singular value decomposition (SVD) approach. In the decoupled space, a simple but effective controller is developed with only actuator position as its feedback. Theoretical analysis and numerical simulation results show that the proposed control greatly overcomes the drawbacks of dynamic coupling in the workspace of parallel robot and exhibits excellent control performance, especially tracking performance.

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29

Gai, Jiang Tao, Shou Dao Huang, Guang Ming Zhou, and Yi Yuan. "Design and Analysis of a Novel Structure Form of Electro-Mechanical Transmission." Advanced Materials Research 694-697 (May 2013): 497–502. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.497.

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In order to search after a new way of the propulsion system of tracked vehicle, a novel structure form of electro-mechanical transmission was developed in this paper, through analyzing the advantages and disadvantages of existing projects of electric drive system for tracked vehicle. It could increase the rate of power exertion obviously and synthesize the mechanical and electrical strongpoint. And based on the structure form, an electro-mechanical transmission was designed with double electromotor added planetary mechanism of steering power coupling and gearshift, considering engineering realization. And then straight-line driving and steering performances of the transmission were calculated which proved that the novel electro-mechanical transmission could meet the requirement of tracked vehicle propulsion well.

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30

Veil, Carina, Sandra Schöne, Niklas Harland, Johannes Schüle, Peter Somers, Arnulf Stenzl, Cristina Tarín, and Oliver Sawodny. "Electro-Mechanical Coupling in Impedance-Based Tissue Differentiation Under Compression*." IFAC-PapersOnLine 55, no. 20 (2022): 564–69. http://dx.doi.org/10.1016/j.ifacol.2022.09.155.

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31

Lee, Gae-Myoung. "Temperature Stability of Electro-mechanical Coupling Factors of PZT Ceramics." Journal of the Korean Institute of Electrical and Electronic Material Engineers 27, no. 1 (January 1, 2014): 27–32. http://dx.doi.org/10.4313/jkem.2014.27.1.27.

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32

Tsai, Wan-Yu, and Nina Balke. "Probing Local Ion Insertion via Electro-Chemo-Mechanical Coupling Responses." ECS Meeting Abstracts MA2021-02, no. 1 (October 19, 2021): 122. http://dx.doi.org/10.1149/ma2021-021122mtgabs.

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33

Santucci, Simone, Haiwu Zhang, Simone Sanna, Nini Pryds, and Vincenzo Esposito. "Enhanced electro-mechanical coupling of TiN/Ce0.8Gd0.2O1.9 thin film electrostrictor." APL Materials 7, no. 7 (July 2019): 071104. http://dx.doi.org/10.1063/1.5091735.

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34

Tadi Beni, Yaghoub. "Size-dependent analysis of piezoelectric nanobeams including electro-mechanical coupling." Mechanics Research Communications 75 (July 2016): 67–80. http://dx.doi.org/10.1016/j.mechrescom.2016.05.011.

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35

Qi, Hang, Daining Fang, and Zhenhan Yao. "FEM analysis of electro-mechanical coupling effect of piezoelectric materials." Computational Materials Science 8, no. 4 (September 1997): 283–90. http://dx.doi.org/10.1016/s0927-0256(97)00041-4.

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36

Behjat, B., and M. R. Khoshravan. "Nonlinear static response of piezoelectric plates considering electro-mechanical coupling." Journal of Central South University 19, no. 5 (April 27, 2012): 1182–88. http://dx.doi.org/10.1007/s11771-012-1126-y.

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37

Wu, Yijuan, Jürgen Markmann, and Erica T. Lilleodden. "Electro-chemo-mechanical coupling of nanoporous gold at the microscale." Applied Physics Letters 115, no. 25 (December 16, 2019): 251602. http://dx.doi.org/10.1063/1.5128049.

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38

Ong, E. T., K. H. Lee, and K. M. Lim. "Singular elements for electro-mechanical coupling analysis of micro-devices." Journal of Micromechanics and Microengineering 13, no. 3 (April 15, 2003): 482–90. http://dx.doi.org/10.1088/0960-1317/13/3/319.

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39

Zhupanska, Olesya I., and Robert L. Sierakowski. "Electro-thermo-mechanical coupling in carbon fiber polymer matrix composites." Acta Mechanica 218, no. 3-4 (December 29, 2010): 319–32. http://dx.doi.org/10.1007/s00707-010-0427-1.

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Chen, Kai, Jibin Hu, and Zengxiong Peng. "Analysis of Active Vibration for HEVs through Electro-mechanical Coupling." Energy Procedia 105 (May 2017): 3164–72. http://dx.doi.org/10.1016/j.egypro.2017.03.686.

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Zhang, Yinquan, Kun Huang, and Changxing Zhang. "Nonlinear Vibrations of Carbon Nanotubes with Thermal-Electro-Mechanical Coupling." Applied Sciences 13, no. 4 (February 4, 2023): 2031. http://dx.doi.org/10.3390/app13042031.

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Carbon nanotubes (CNTs) have wide-ranging applications due to their excellent mechanical and electrical properties. However, there is little research on the nonlinear mechanical properties of thermal-electro-mechanical coupling. In this paper, we study the nonlinear vibrations of CNTs by a thermal-electro-mechanical coupling beam theory. The Galerkin method is used to discretize the partial differential equation and obtain two nonlinear ordinary differential equations that describe the first- and second-order mode vibrations. Then, we obtain the approximate analytical solutions of the two equations for the primary resonance and the subharmonic resonance using the multi-scale method. The results indicate the following three points. Firstly, the temperature and electric fields have a significant influence on the first-mode vibration, while they have little influence on the second-mode vibration. Under the primary resonance, when the load amplitude of the second mode is 20 times that of the first mode, the maximal vibrational amplitude of the second is only one-fifth of the first. Under the subharmonic resonance, it is more difficult to excite the subharmonic vibration at the second-order mode than that of the first mode for the same parameters. Secondly, because the coefficient of electrical expansion (CEE) is much bigger than the coefficient of thermal expansion (CTE), CNTs are more sensitive to changes in the electric field than the temperature field. Finally, under the primary resonance, there are two bifurcation points in the frequency response curves and the load-amplitude curves. As a result, they will induce the jump phenomenon of vibrational amplitude. When the subharmonic vibration is excited, the free vibration term does not disappear, and the steady-state vibration includes two compositions.

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Pan, Guixia, Ruijie Xiao, and Chengbo Zhai. "Enhanced multicolor optomechanically induced transparency in electro-optical hybrid system." Laser Physics 32, no. 7 (May 23, 2022): 075202. http://dx.doi.org/10.1088/1555-6611/ac6e45.

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Abstract We investigate the tunable multicolor optomechanically induced transparency through electro-optical hybrid system. The system consists an optical cavity fulled with three-level atomic ensemble and two charged mechanical oscillators coupled via Coulomb interaction. Under different coupling strengths, the system can exhibit the phenomena of optomechanical induced transparency increase. Specifically, the number of the transparency windows increases with the presence of charged mechanical resonators and atoms. Furthermore, the induced transparency phenomena are strongly manipulated by the coupling strength between the optical mode and the mechanical mode, or between the optical mode and the atoms and the Rabi frequency, or between the Coulomb coupling between the two charged mechanical modes. It is found that the larger coupling strength between the cavity field and the atoms and the mechanical oscillator, the wider transparent windows. Our approach is feasible for storage of light and has potential applications in quantum information processing.

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Cohen, Noy, Andreas Menzel, and Gal deBotton. "Towards a physics-based multiscale modelling of the electro-mechanical coupling in electro-active polymers." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2186 (February 2016): 20150462. http://dx.doi.org/10.1098/rspa.2015.0462.

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Owing to the increasing number of industrial applications of electro-active polymers (EAPs), there is a growing need for electromechanical models which accurately capture their behaviour. To this end, we compare the predicted behaviour of EAPs undergoing homogeneous deformations according to three electromechanical models. The first model is a phenomenological continuum-based model composed of the mechanical Gent model and a linear relationship between the electric field and the polarization. The electrical and the mechanical responses according to the second model are based on the physical structure of the polymer chain network. The third model incorporates a neo-Hookean mechanical response and a physically motivated microstructurally based long-chains model for the electrical behaviour. In the microstructural-motivated models, the integration from the microscopic to the macroscopic levels is accomplished by the micro-sphere technique. Four types of homogeneous boundary conditions are considered and the behaviours determined according to the three models are compared. For the microstructurally motivated models, these analyses are performed and compared with the widely used phenomenological model for the first time. Some of the aspects revealed in this investigation, such as the dependence of the intensity of the polarization field on the deformation, highlight the need for an in-depth investigation of the relationships between the structure and the behaviours of the EAPs at the microscopic level and their overall macroscopic response.

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Xu, Jinghua, Shuyou Zhang, Jianrong Tan, and Sheng Hongsheng. "Interruption performance design of variable freedom mechanism triggered by electro-mechanical-magnetic coupling." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 18 (May 6, 2016): 3330–41. http://dx.doi.org/10.1177/0954406216646136.

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Coupling mechanism plays an important role in transmitting, motivating and actuating mechanical functions. However, it is difficult to obtain the transient dynamics performance of mechanism with variable degree of freedom precisely. Therefore, an interruption performance design method of variable freedom mechanism triggered by electro-magneto-thermo coupling is put forward. The Euler-Lagrange partial differential equations of variable freedom mechanism are built using generalized coordinates. Degree of freedom reduction rules are proposed to merge transformation or rotation constraints and obtain the total degrees of freedom of variable freedom mechanism at each transient status. Bivariate interpolating is employed to determine the electro-mechanical-magnetic coupled Lorentz force. Dynamics performance is simulated by iteration of linear algebraic equations using implicit predictor-corrector integration method. The design parameters such as stiffness and pre-tightening force of trigger spring, permissible dimension deviations and hole-shaft fit tolerance are determined and improved using the sensitivity analysis of simulation results. The pneumatic mechanical endurance and thermal infrared temperature rise experiments are accomplished to determine the infrared radiation energy distribution and transient working status of components. It gives an auxiliary thermo-visual approach for transient performance design of coupling mechanism.

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Tang, Yongming, Xiangshen He, and Jiawei Cao. "Fast calculation method of transient temperature rise of motor for electro-mechanical braking." Science Progress 104, no. 2 (April 2021): 003685042110245. http://dx.doi.org/10.1177/00368504211024553.

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Electro-mechanical braking is a new braking mode of rail vehicles, which has the advantages of compact structure, fast response speed, and high precision. It is a new braking technology that conforms to the development trend of full electrification and full intelligence of rail transit brake devices. Due to the special power demand of the electro-mechanical braking device, the electro-mechanical braking motor has a short-time and intermittent working mechanism and is in the state of blocking during working, resulting in its high-temperature rise. Therefore, it is necessary to calculate the temperature rise of the motor quickly and accurately at the beginning of its design. To address this problem, based on the coupling calculation of the equivalent thermal circuit method and the equivalent magnetic circuit method, a fast temperature rise calculation method of the motor is proposed. Then, using the fast calculation method, the temperature rise of the electro-mechanical brake motor under different working periods and wind speed is calculated. By function fitting the calculated results, the motor temperature rise curve fitting function is obtained, which can accurately predict the temperature rise of the motor under different working conditions. It provides a theoretical basis for the use of electro-mechanical braking motor in different working conditions and also provides a reference for the design of the electro-mechanical braking motor.

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He, Yi, Yidi Shen, Bin Tang, and Qi An. "Electro-mechanical coupling in FCC metal rhodium from first-principles simulations." Journal of Materials Research 36, no. 13 (February 16, 2021): 2662–73. http://dx.doi.org/10.1557/s43578-021-00123-7.

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Li, Zhen-Ni, Yi-Ze Wang, and Yue-Sheng Wang. "Electro-mechanical coupling diode of elastic wave in nonlinear piezoelectric metamaterials." Journal of the Acoustical Society of America 150, no. 2 (August 2021): 891–905. http://dx.doi.org/10.1121/10.0005817.

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Pan, Suxin, Shilin Xie, and Qun Li. "Coupling electro-mechanical behaviors in the interdigital electrode device of ferroelectrics." Acta Mechanica Sinica 37, no. 4 (January 21, 2021): 649–61. http://dx.doi.org/10.1007/s10409-020-01043-1.

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Pitanti, Alessandro, Johannes M. Fink, Amir H. Safavi-Naeini, Jeff T. Hill, Chan U. Lei, Alessandro Tredicucci, and Oskar Painter. "Strong opto-electro-mechanical coupling in a silicon photonic crystal cavity." Optics Express 23, no. 3 (February 3, 2015): 3196. http://dx.doi.org/10.1364/oe.23.003196.

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Li, Xiuhan, Quan Yuan, Tianyang Yang, Jian Liu, and Haixia Zhang. "Magnetic energy coupling system based on micro-electro-mechanical system coils." Journal of Applied Physics 111, no. 7 (April 2012): 07E734. http://dx.doi.org/10.1063/1.3680528.

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