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Journal articles on the topic 'ELECTROMECHANICAL FRAMEWORK'

Author: Grafiati

Published: 11 September 2023

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1

Trayanova, Natalia A., Jason Constantino, and Viatcheslav Gurev. "Electromechanical models of the ventricles." American Journal of Physiology-Heart and Circulatory Physiology 301, no. 2 (2011): H279—H286. http://dx.doi.org/10.1152/ajpheart.00324.2011.

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Computational modeling has traditionally played an important role in dissecting the mechanisms for cardiac dysfunction. Ventricular electromechanical models, likely the most sophisticated virtual organs to date, integrate detailed information across the spatial scales of cardiac electrophysiology and mechanics and are capable of capturing the emergent behavior and the interaction between electrical activation and mechanical contraction of the heart. The goal of this review is to provide an overview of the latest advancements in multiscale electromechanical modeling of the ventricles. We first

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Zeng, Qing Liang, Bin Zhang, Zhi Hai Liu, Hong Xi Kang, and Zai Chao Wu. "Coal Mine Electromechanical Equipment Online Management Platform Development Based on Web." Applied Mechanics and Materials 220-223 (November 2012): 2818–22. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.2818.

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In this paper, an implementation framework of electromechanical equipment online management was put forward by studying on key technology of coal mine electromechanical equipment online management based on web. Based on ASP.NET technology, C# as development language, Oracle10g database for data processing, it realized cross-regional and inter-provinces multi-sector information online management, information sharing and report form processing, improved electromechanical equipment management efficiency of mine enterprises and reduced management costs.

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Xie, Yu, Zhigang Wu, and Erzhuan Zhou. "Parallel Simulation of The Electromechanical Transient Phenomena of Power System via Modern Software Development Technique." Journal of Physics: Conference Series 2195, no. 1 (2022): 012049. http://dx.doi.org/10.1088/1742-6596/2195/1/012049.

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Abstract The simulation of power system electromechanical transient phenomena is highly dependent on the knowledge and model of special domain. For this reason, traditional parallelization of the simulation must be coupled with concrete algorithm and code. In this paper, a parallelized electromechanical transient simulation program is proposed based on the open-source simulation engine called InterPSS and general open object-oriented modelling framework. The correctness and effectiveness of this framework have been verified by a large-scale simulation case.

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Gao, Lei. "Study on the Low Carbonization of Highway Electromechanical System." Applied Mechanics and Materials 694 (November 2014): 63–66. http://dx.doi.org/10.4028/www.scientific.net/amm.694.63.

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Based on the low carbonization connotation and components of highway electromechanical system, the low carbonization of highway electromechanical system is divided into five major sections: low carbonization of power supply and distribution system, low carbonization of lighting system, low carbonization of charging system, low carbonization of monitoring and communication system, low carbonization of energy use. And for each section the key management and technologies of low carbonization are summarized, thus to form the low carbonization system framework for highway electromechanical system.

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Albright, Tyler, and Jared Hobeck. "Investigating the Electromechanical Properties of Carbon Black-Based Conductive Polymer Composites via Stochastic Modeling." Nanomaterials 13, no. 10 (2023): 1641. http://dx.doi.org/10.3390/nano13101641.

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Conductive polymer composites (CPCs) have shown potential for structural health monitoring applications based on repeated findings of irreversible transducer electromechanical property change due to fatigue. In this research, a high-fidelity stochastic modeling framework is explored for predicting the electromechanical properties of spherical element-based CPC materials at bulk scales. CPC dogbone specimens are manufactured via casting and their electromechanical properties are characterized via uniaxial tensile testing. Model parameter tuning, demonstrated in previous works, is deployed for i

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Amrhein, Marco, and Philip T. Krein. "3-D Magnetic Equivalent Circuit Framework for Modeling Electromechanical Devices." IEEE Transactions on Energy Conversion 24, no. 2 (2009): 397–405. http://dx.doi.org/10.1109/tec.2009.2016134.

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Li, Zhanfeng, Chennakesava Kadapa, Mokarram Hossain, and Jiong Wang. "A numerical framework for the simulation of coupled electromechanical growth." Computer Methods in Applied Mechanics and Engineering 414 (September 2023): 116128. http://dx.doi.org/10.1016/j.cma.2023.116128.

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Talbot, Hugo, Stéphanie Marchesseau, Christian Duriez, Maxime Sermesant, Stéphane Cotin, and Hervé Delingette. "Towards an interactive electromechanical model of the heart." Interface Focus 3, no. 2 (2013): 20120091. http://dx.doi.org/10.1098/rsfs.2012.0091.

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In this work, we develop an interactive framework for rehearsal of and training in cardiac catheter ablation, and for planning cardiac resynchronization therapy. To this end, an interactive and real-time electrophysiology model of the heart is developed to fit patient-specific data. The proposed interactive framework relies on two main contributions. First, an efficient implementation of cardiac electrophysiology is proposed, using the latest graphics processing unit computing techniques. Second, a mechanical simulation is then coupled to the electrophysiological signals to produce realistic m

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Moura, Adriane G., and Alper Erturk. "Combined piezoelectric and flexoelectric effects in resonant dynamics of nanocantilevers." Journal of Intelligent Material Systems and Structures 29, no. 20 (2018): 3949–59. http://dx.doi.org/10.1177/1045389x18803441.

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We establish and analyze an analytical framework by accounting for both the piezoelectric and flexoelectric effects in bimorph cantilevers. The focus is placed on the development of governing electroelastodynamic piezoelectric–flexoelectric equations for the problems of resonant energy harvesting, sensing, and actuation. The coupled governing equations are analyzed to obtain closed-form frequency response expressions via modal analysis. The combined piezoelectric–flexoelectric coupling coefficient expression is identified and its size dependence is explored. Specifically, a typical atomistic v

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Schlegel, Holger, Arvid Hellmich, Kevin Hipp, Johannes Quellmalz, and Reimund Neugebauer. "Improved Controller Performance for Electromechanical Axes." Solid State Phenomena 251 (July 2016): 113–19. http://dx.doi.org/10.4028/www.scientific.net/ssp.251.113.

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The cascaded position control structure is state of the art in modern production machines and machine tools. Since an adequate controller performance of the electromechanical axes is still a key aspect for a resource efficient and high-quality production, this topic is addressed by the paper. An overall approach/framework to monitor and ensure an improved controller performance over time, comprising five tangible approaches is presented. All methodologies were developed in the department for control and feedback control technologies of the Technische Universitaet Chemnitz. They will be demonst

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11

Ding, Wei Tao, Lin Xue An, Chun Ming Wang, Yu Ping Huang, Teng Long, and Meng Long Jiang. "Multidisciplinary Integrated Simulation and Design Optimization Framework for Electromechanical Servo System." Applied Mechanics and Materials 704 (December 2014): 263–69. http://dx.doi.org/10.4028/www.scientific.net/amm.704.263.

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This paper presents a tailored multidisciplinary integrated simulation and design optimization framework for electromechanical servo system (MISDOF-EMSS). The work intends to develop flexible integrated simulation techniques and efficient MDO methods to design advanced electromechanical servo systems in modern industries in a more effective and efficient manner. The proposed framework was developed based on ModelCenter commercial MDO framework because of its opening architecture for process integration and algorithm extension. The hardware and software configurations of MISDOF-EMSS were introd

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Gizzi, Alessio, Christian Cherubini, Simonetta Filippi, and Anna Pandolfi. "Theoretical and Numerical Modeling of Nonlinear Electromechanics with applications to Biological Active Media." Communications in Computational Physics 17, no. 1 (2014): 93–126. http://dx.doi.org/10.4208/cicp.091213.260614a.

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AbstractWe present a general theoretical framework for the formulation of the nonlinear electromechanics of polymeric and biological active media. The approach developed here is based on the additive decomposition of the Helmholtz free energy in elastic and inelastic parts and on the multiplicative decomposition of the deformation gradient in passive and active parts. We describe a thermodynamically sound scenario that accounts for geometric and material nonlinearities. In view of numerical applications, we specialize the general approach to a particular material model accounting for the behav

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Jiang, Y., J. M. Gao, G. Sun, et al. "Fault correlation analysis-based framework for reliability deployment of electromechanical system." IOP Conference Series: Materials Science and Engineering 504 (April 26, 2019): 012113. http://dx.doi.org/10.1088/1757-899x/504/1/012113.

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Jiménez-Guarneros, Magdiel, Jonas Grande-Barreto, and Jose de Jesus Rangel-Magdaleno. "Multiclass Incremental Learning for Fault Diagnosis in Induction Motors Using Fine-Tuning with a Memory of Exemplars and Nearest Centroid Classifier." Shock and Vibration 2021 (October 27, 2021): 1–12. http://dx.doi.org/10.1155/2021/6627740.

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Early detection of fault events through electromechanical systems operation is one of the most attractive and critical data challenges in modern industry. Although these electromechanical systems tend to experiment with typical faults, a common event is that unexpected and unknown faults can be presented during operation. However, current models for automatic detection can learn new faults at the cost of forgetting concepts previously learned. This article presents a multiclass incremental learning (MCIL) framework based on 1D convolutional neural network (CNN) for fault detection in induction

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Nitti, Alessandro, Josef Kiendl, Alessio Gizzi, Alessandro Reali, and Marco D. de Tullio. "A curvilinear isogeometric framework for the electromechanical activation of thin muscular tissues." Computer Methods in Applied Mechanics and Engineering 382 (August 2021): 113877. http://dx.doi.org/10.1016/j.cma.2021.113877.

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Baldo, Leonardo, Ivana Querques, Matteo Davide Lorenzo Dalla Vedova, and Paolo Maggiore. "A Model-Based Prognostic Framework for Electromechanical Actuators Based on Metaheuristic Algorithms." Aerospace 10, no. 3 (2023): 293. http://dx.doi.org/10.3390/aerospace10030293.

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The deployment of electro-mechanical actuators plays an important role towards the adoption of the more electric aircraft (MEA) philosophy. On the other hand, a seamless substitution of EMAs, in place of more traditional hydraulic solutions, is still set back, due to the shortage of real-life and reliability data regarding their failure modes. One way to work around this problem is providing a capillary EMA prognostics and health management (PHM) system capable of recognizing failures before they actually undermine the ability of the safety-critical system to perform its functions. The aim of

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Yamamoto, Brennan E., and A. Zachary Trimble. "An experimentally validated analytical model for the coupled electromechanical dynamics of linear vibration energy harvesting systems." Journal of Intelligent Material Systems and Structures 28, no. 1 (2016): 3–22. http://dx.doi.org/10.1177/1045389x16642304.

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Recent technological advancements in the efficiency of microprocessors, sensors, and other digital logic systems have increased research effort in vibration energy harvesting, where trace amounts of energy are scavenged from the ambient environment to provide power. Due to the complexity and nonlinearity of most vibration energy harvesting systems, existing research has relied primarily on numerical and finite element methods for harvester design and validation. Although these methods are useful, a vetted analytical model provides intuitive understanding of the governing dynamics and is useful

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Abdelrahman, Alaa A., Mohamed S. Abdelwahed, Hani M. Ahmed, Amin Hamdi, and Mohamed A. Eltaher. "Investigation of Size-Dependent Vibration Behavior of Piezoelectric Composite Nanobeams Embedded in an Elastic Foundation Considering Flexoelectricity Effects." Mathematics 11, no. 5 (2023): 1180. http://dx.doi.org/10.3390/math11051180.

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This article investigates the size dependent on piezoelectrically layered perforated nanobeams embedded in an elastic foundation considering the material Poisson’s ratio and the flexoelectricity effects. The composite beam is composed of a regularly squared cut-out elastic core with two piezoelectric face sheet layers. An analytical geometrical model is adopted to obtain the equivalent geometrical variables of the perforated core. To capture the Poisson’s ratio effect, the three-dimensional continuum mechanics adopted to express the kinematics are kinetics relations in the framework of the Eul

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Quattrocchi, Gaetano, Pier C. Berri, Matteo D. L. Dalla Dalla Vedova, and Paolo Maggiore. "An Improved Fault Identification Method for Electromechanical Actuators." Aerospace 9, no. 7 (2022): 341. http://dx.doi.org/10.3390/aerospace9070341.

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Adoption of electromechanical actuation systems in aerospace is increasing, and so reliable diagnostic and prognostics schemes are required to ensure safe operations, especially in key, safety-critical systems such as primary flight controls. Furthermore, the use of prognostics methods can increase the system availability during the life cycle and thus reduce costs if implemented in a predictive maintenance framework. In this work, an improvement of an already presented algorithm will be introduced, whose scope is to predict the actual degradation state of a motor in an electromechanical actua

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20

Ghasemi, Hamid, Harold S. Park, Naif Alajlan, and Timon Rabczuk. "A Computational Framework for Design and Optimization of Flexoelectric Materials." International Journal of Computational Methods 17, no. 01 (2019): 1850097. http://dx.doi.org/10.1142/s0219876218500974.

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We combine isogeometric analysis (IGA), level set (LS) and pointwise density-mapping techniques for design and topology optimization of piezoelectric/flexoelectric materials. We use B-spline elements to discretize the fourth-order partial differential equations of flexoelectricity, which require at least [Formula: see text] continuous approximations. We adopt the multiphase vector LS model which easily copes with various numbers of material phases and multiple constraints. In case studies, we first confirm the accuracy of the IGA model and then provide numerical examples for both pure and comp

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Korotkov, L., Likhovaja Likhovaja, R. Levitsky, I. Zachek, and A. Vdovych. "Dielectric, Electromechanical and Elastic Properties of K (NH ) H PO Compounds." Фізика і хімія твердого тіла 16, no. 1 (2015): 116–22. http://dx.doi.org/10.15330/pcss.16.1.116-122.

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We describe the available experimental data for the dielectric, piezoelectric, and elastic characteristics of the antiferroelectric crystals, using the proposed microscopic theory. Within the framework of the thermodynamic theory and using the obtained experimental data we calculate the dielectric, piezoelectrlic, and elastic characteristics of the compounds at > 0.32.

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22

Cao, Yuyan, Yongxi Lyu, and Xinmin Wang. "Fault Diagnosis Reasoning Algorithm for Electromechanical Actuator Based on an Improved Hybrid TFPG Model." Electronics 9, no. 12 (2020): 2153. http://dx.doi.org/10.3390/electronics9122153.

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As a new generation of power-by-wire actuators, electromechanical actuators are finding increasingly more applications in the aviation field. Aiming at the application problem of the fault diagnosis of the electromechanical actuator, an improved diagnosis reasoning algorithm based on a hybrid timed failure propagation graph (TFPG) model is proposed. On the basis of this hybrid TFPG model, the activation conditions of OR and causality among nodes are given. The relationship discrepancy node is transformed into a relationship node and discrepancy node, which unifies the model storage process. Th

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23

Bowen, Chris R., K. V. S. Raman, and Vitaly Yu Topolov. "Piezoelectric Composites Based on Hydroxyapatite / Barium Titanate." Advances in Science and Technology 54 (September 2008): 1–6. http://dx.doi.org/10.4028/www.scientific.net/ast.54.1.

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This paper reports experimental and modelling results on the manufacture and properties of hydroxyapatite / BaTiO3 ceramic composites and studies their electromechanical properties with ferroelectric ceramic volume fractions, mFC ³ 0.7. In these composites the bio-active properties of hydroxyapatite are combined with the electromechanical properties of a perovskite-type ferroelectric BaTiO3 ceramic in an attempt to create a novel polarised bone-substitute material. Experimental results of the volume fraction dependences of the effective piezoelectric coefficients * 31 d (mFC), * 33 d (mFC) and

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Abdelrahman, Alaa A., Hussein A. Saleem, Gamal S. Abdelhaffez, and Mohamed A. Eltaher. "On Bending of Piezoelectrically Layered Perforated Nanobeams Embedded in an Elastic Foundation with Flexoelectricity." Mathematics 11, no. 5 (2023): 1162. http://dx.doi.org/10.3390/math11051162.

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Analysis of the electromechanical-size-dependent bending of piezoelectric composite structural components with flexoelectricity has been considered by many researchers because of the developments of nanotechnology and the applicability of piezoelectric composite nanobeam structures in Micro/Nano-Electro-Mechanical Systems (MEMS/NEMS). Therefore, the work investigates the size-dependent electromechanical bending of piezoelectrically layered perforated nanobeams resting on elastic foundations including the flexoelectric effect. Within the framework of the modified nonlocal strain gradient elasti

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Jiang, Hongquan, Rongxi Wang, Jianmin Gao, Zhiyong Gao, and Xu Gao. "Evidence fusion-based framework for condition evaluation of complex electromechanical system in process industry." Knowledge-Based Systems 124 (May 2017): 176–87. http://dx.doi.org/10.1016/j.knosys.2017.03.011.

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Cao, Pei, Shengli Zhang, Zequn Wang, and Kai Zhou. "Damage identification using piezoelectric electromechanical Impedance: A brief review from a numerical framework perspective." Structures 50 (April 2023): 1906–21. http://dx.doi.org/10.1016/j.istruc.2023.03.017.

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Yang, Weidong, Wenxuan Ding, Menglong Liu, Jun Yang, and Mao Li. "A theoretical model of a flexible capacitive pressure sensor with microstructured electrodes for highly sensitive electronic skin." Journal of Physics D: Applied Physics 55, no. 9 (2021): 094001. http://dx.doi.org/10.1088/1361-6463/ac34a9.

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Abstract Electronic skin (e-skin) has attracted much attention in smart wearables, prosthetics, and robotics. Capacitive-type pressure sensors are generally regarded as a good option for designing tactile sensing devices owing to their superior sensitivity in low-pressure regions, fast response time, and convenient manufacturing. Introducing microstructures on the electrode surface is an effective approach to achieve highly sensitive capacitive pressure sensors. In this work, an electromechanical model is proposed to build the relationship between capacitance change and compressive force. The

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Dickow, A., and G. Feiertag. "A systematic MEMS sensor calibration framework." Journal of Sensors and Sensor Systems 4, no. 1 (2015): 97–102. http://dx.doi.org/10.5194/jsss-4-97-2015.

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Abstract. In this paper we present a systematic method to determine sets of close to optimal sensor calibration points for a polynomial approximation. For each set of calibration points a polynomial is used to fit the nonlinear sensor response to the calibration reference. The polynomial parameters are calculated using ordinary least square fit. To determine the quality of each calibration, reference sensor data is measured at discrete test conditions. As an error indicator for the quality of a calibration the root mean square deviation between the calibration polynomial and the reference meas

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29

Tarn, Jiann-Quo. "Exact Solutions for Electroelastic Analysis of Generalized Plane Strain and Torsion of Piezoelectric Cylinders." Journal of Mechanics 17, no. 3 (2001): 149–56. http://dx.doi.org/10.1017/s1727719100004512.

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ABSTRACTExact electroelastic analysis of hollow and solid circular cylinders subjected to a uniform temperature change and electromechanical loads that do not vary axially are presented. Generalized plane strain and torsion of a piezoelectric cylindrical body is formulated in a state space framework. Uniformly valid exact solutions are obtained for hollow and solid circular cylinders subjected to extension, torsion, pressuring, shearing, electric loadings and a uniform temperature change.

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Peng, William Z., Hyunjong Song, Dariusz Czarkowski, and Joo H. Kim. "Switched electromechanical dynamics for transient phase control of brushed DC servomotor." Chaos: An Interdisciplinary Journal of Nonlinear Science 32, no. 12 (2022): 123119. http://dx.doi.org/10.1063/5.0101432.

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Robotic tasks often exceed the scope of steady-state or periodic behavior, which necessitates generally-applicable models of actuators intended to generate transient or aperiodic motion. However, existing electromechanical models of servomotors typically omit consideration of the switching power converter circuits required for directional, speed, or torque control. In this study, a multi-domain framework is established for switched electromechanical dynamics in servomotor systems for their analysis and control in general aperiodic tasks including transient phases. The switched electromechanica

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Barettin, D., S. Madsen, B. Lassen, and M. Willatzen. "Computational Methods for Electromechanical Fields in Self-Assembled Quantum Dots." Communications in Computational Physics 11, no. 3 (2012): 797–830. http://dx.doi.org/10.4208/cicp.111110.110411a.

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AbstractA detailed comparison of continuum and valence force field strain calculations in quantum-dot structures is presented with particular emphasis to boundary conditions, their implementation in the finite-element method, and associated implications for electronic states. The first part of this work provides the equation framework for the elastic continuum model including piezoelectric effects in crystal structures as well as detailing the Keating model equations used in the atomistic valence force field calculations. Given the variety of possible structure shapes, a choice of pyramidal, s

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Providakis, Costas P. "Electro-Mechanical Admittance-Based Damage Detection Using Extreme Value Statistics." Key Engineering Materials 385-387 (July 2008): 561–64. http://dx.doi.org/10.4028/www.scientific.net/kem.385-387.561.

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This paper presents the use of statistically rigorous algorithms combined with electromechanical (E/M) impedance approach for health monitoring of engineering structures. In particular, a statistical pattern recognition procedure is developed, based on frequency domain data of electromechanical impedance, to establish a decision boundary for damage identification. In order to diagnose damage with statistical confidence, health monitoring is cast in the context of outlier detection framework. Inappropriate modeling of tail distribution of outliers imposes potentially misleading behavior associa

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Singh, B. M., J. Rokne, and R. S. Dhaliwal. "Closed-form solution for piezoelectric layer with two collinear cracks parallel to the boundaries." Mathematical Problems in Engineering 2006 (2006): 1–16. http://dx.doi.org/10.1155/mpe/2006/91846.

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We consider the problem of determining the stress distribution in an infinitely long piezoelectric layer of finite width, with two collinear cracks of equal length and parallel to the layer boundaries. Within the framework of reigning piezoelectric theory under mode III, the cracked piezoelectric layer subjected to combined electromechanical loading is analyzed. The faces of the layers are subjected to electromechanical loading. The collinear cracks are located at the middle plane of the layer parallel to its face. By the use of Fourier transforms we reduce the problem to solving a set of trip

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Cole, D. G., W. R. Saunders, and H. H. Robertshaw. "Modal Parameter Estimation for Piezostructures." Journal of Vibration and Acoustics 117, no. 4 (1995): 431–38. http://dx.doi.org/10.1115/1.2874475.

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This paper is motivated by the need for consistency between piezostructure measurements and existing modal analysis approaches. Fundamental relationships are developed which reveal that the existing framework of traditional modal analysis approaches can be used to estimate modal parameters which describe the piezostructure dynamics. The modal analysis technique is a frequency domain method where the relationship between pole-residue models for conventional structures and piezostructures is developed. Since typical arrangements of piezoelectric sensors and actuators for modal testing lead to am

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Amendola, G., I. Dimino, M. Magnifico, and R. Pecora. "Distributed actuation concepts for a morphing aileron device." Aeronautical Journal 120, no. 1231 (2016): 1365–85. http://dx.doi.org/10.1017/aer.2016.64.

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ABSTRACTThe actuation mechanism is a crucial aspect in the design of morphing structures due to the very stringent requirements involving actuation torque, consumed power, and allowable size and weight.In the framework of the CRIAQ MD0-505 project, novel design strategies are investigated to enable morphing of aeronautical structures. This paper deals with the design of a morphing aileron with the main focus on the actuation technology. The morphing aileron consists of segmented 'finger-like' ribs capable of changing the aerofoil camber in order to match target aerodynamic shapes. In this work

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Booker, Julian D., Richard Lock, Sam Williamson, and Jon Freire Gómez. "Effective practices for the concept design of electromechanical systems." Journal of Engineering, Design and Technology 14, no. 3 (2016): 489–506. http://dx.doi.org/10.1108/jedt-03-2014-0017.

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Purpose Concept design practices in engineering are not common across industry or academia. There are a number of well-known tools and methods acknowledged as useful in facilitating concept designing, that is, to assist idea generation, aid evaluation and final selection of one winning concept from many. Combinations of these popular concept design tools and methods provide various systematic methodologies by which practitioners propose to conduct or teach concept designing. In this paper, effective practices and trends are observed through the application of a specific concept design methodol

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Arellano-Espitia, Francisco, Miguel Delgado-Prieto, Victor Martinez-Viol, Juan Jose Saucedo-Dorantes, and Roque Alfredo Osornio-Rios. "Deep-Learning-Based Methodology for Fault Diagnosis in Electromechanical Systems." Sensors 20, no. 14 (2020): 3949. http://dx.doi.org/10.3390/s20143949.

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Fault diagnosis in manufacturing systems represents one of the most critical challenges dealing with condition-based monitoring in the recent era of smart manufacturing. In the current Industry 4.0 framework, maintenance strategies based on traditional data-driven fault diagnosis schemes require enhanced capabilities to be applied over modern production systems. In fact, the integration of multiple mechanical components, the consideration of multiple operating conditions, and the appearance of combined fault patterns due to eventual multi-fault scenarios lead to complex electromechanical syste

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Burkus, Ervin, Ákos Odry, Jan Awrejcewicz, István Kecskés, and Péter Odry. "Mechanical Design and a Novel Structural Optimization Approach for Hexapod Walking Robots." Machines 10, no. 6 (2022): 466. http://dx.doi.org/10.3390/machines10060466.

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This paper presents a novel model-based structural optimization approach for the efficient electromechanical development of hexapod robots. First, a hexapod-design-related analysis of both optimization objectives and relevant parameters is conducted based on the derived dynamical model of the robot. A multi-objective optimization goal is proposed, which minimizes energy consumption, unwanted body motion and differences between joint torques. Then, an optimization framework is established, which utilizes a sophisticated strategy to handle the optimization problems characterized by a large set o

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Sena, José A. S., Maria C. P. Fonseca, Italo F. Di Paolo, et al. "An object-oriented framework applied to the study of electromechanical oscillations at Tucuruí hydroelectric power plant." Electric Power Systems Research 81, no. 12 (2011): 2081–87. http://dx.doi.org/10.1016/j.epsr.2011.08.002.

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Liu, Chunxiao, Tao Jiang, Huiying Zhao, Xue Li, and Peng Li. "Holistic data-driven framework for estimating electromechanical dynamic patterns from synchrophasor measurements in bulk power grids." IET Energy Systems Integration 2, no. 4 (2020): 344–54. http://dx.doi.org/10.1049/iet-esi.2020.0029.

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Likhovaya, D. V., T. N. Korotkova, and L. N. Korotkov. "Dielectric, elastic and electromechanical nonlinearity of relaxor and "nearly" relaxor KDP-ADP mixed crystals." Journal of Advanced Dielectrics 03, no. 03 (2013): 1350019. http://dx.doi.org/10.1142/s2010135x13500197.

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Temperature dependences of linear and nonlinear dielectric, elastic and electromechanical responses in K 1-x( NH 4)x H 2 PO 4 (x ≈ 0.19 and 0.24) single crystals have been studied within temperature range 10–300 K. It was found near linear relations between dielectric permittivity (ε33), elastic compliance (S6) and piezoelectric constant (d36). Different behavior of elastic and dielectric nonlinear responses was revealed in the crystals undergoing ferroelectric phase transitions and transition to relaxor state. Obtained temperature dependences of nonlinear permittivity and elastic compliance a

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Wang, Gongrun, Yongxing Wang, Lifan Zhang, Shutian Xue, Enyuan Dong, and Jiyan Zou. "A Novel Model of Electromechanical Contactors for Predicting Dynamic Characteristics." Energies 14, no. 22 (2021): 7466. http://dx.doi.org/10.3390/en14227466.

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To ensure the reliability of power supply, a dual power supply structure appears in the power distribution system. Power supply switching is a complex physical process. This paper presents a novel model of electromechanical contactors. This model can simulate the multi-physics process of power switching. This article completes the simulation framework for power switching through contactors for the first time. Among them, the structural topology for contactors is also proposed. On the basis of the novel structure topology, an equivalent magnetic circuit model is established to calculate the rel

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Arellano-Espitia, Francisco, Miguel Delgado-Prieto, Artvin-Darien Gonzalez-Abreu, Juan Jose Saucedo-Dorantes, and Roque Alfredo Osornio-Rios. "Deep-Compact-Clustering Based Anomaly Detection Applied to Electromechanical Industrial Systems." Sensors 21, no. 17 (2021): 5830. http://dx.doi.org/10.3390/s21175830.

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The rapid growth in the industrial sector has required the development of more productive and reliable machinery, and therefore, leads to complex systems. In this regard, the automatic detection of unknown events in machinery represents a greater challenge, since uncharacterized catastrophic faults can occur. However, the existing methods for anomaly detection present limitations when dealing with highly complex industrial systems. For that purpose, a novel fault diagnosis methodology is developed to face the anomaly detection. An unsupervised anomaly detection framework named deep-autoencoder

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Vargas-Hernandez, Noe, and Jami J. Shah. "2nd-CAD: A Tool for Conceptual Systems Design in Electromechanical Domain." Journal of Computing and Information Science in Engineering 4, no. 1 (2004): 28–36. http://dx.doi.org/10.1115/1.1683856.

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This paper presents a framework and information model for the development of SECOND-CAD (Systems Engineering CONceptual Design-CAD), or 2nd-CAD, a Computer Aided Conceptual Design (CACD) tool for Electromechanical Systems. The conceptual design tasks supported include functional design, behavior modeling, and component selection from standard industrial supply catalogs for mechanical, fluid, and electric engineering domains. 2nd-CAD is composed of three entity catalogs the designer uses to create three interconnected structures for function, behavior, and component. The logical model behind 2n

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Brighenti, Roberto, Andreas Menzel, and Franck J. Vernerey. "A physics-based micromechanical model for electroactive viscoelastic polymers." Journal of Intelligent Material Systems and Structures 29, no. 14 (2018): 2902–18. http://dx.doi.org/10.1177/1045389x18781036.

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Electroactive polymers with time-dependent behavior are considered in the present paper by way of a new physics-based micromechanical model; such viscoelastic response is described by the internal evolution of the polymer network, providing a new viewpoint on the stress relaxation occurring in elastomers. The main peculiarity of such internally rearranging materials is their capacity to locally reset their reference stress-free state, leading to a mechanical behavior that relaxes out (eases off) an induced stress state and that can thus be assimilated to a sort of internal self-healing process

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Zha, Xuan F. "A Generic P/T Net Model and Framework for Concurrent Integrated Design and Planning of Electromechanical Assemblies." IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans 39, no. 3 (2009): 514–27. http://dx.doi.org/10.1109/tsmca.2009.2014551.

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Wang, RongXi, Xu Gao, JianMin Gao, ZhiYong Gao, Kun Chen, and CaiYuan Peng. "An artificial immune and incremental learning inspired novel framework for performance pattern identification of complex electromechanical systems." Science China Technological Sciences 63, no. 1 (2019): 1–13. http://dx.doi.org/10.1007/s11431-019-9532-5.

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Fu, Jingcheng, Albert S. J. van Heerden, David Judt, and Craig Lawson. "A Generic Mission-Level Flight Control Surface EMA Power Consumption Simulation Tool." Aerospace 9, no. 6 (2022): 290. http://dx.doi.org/10.3390/aerospace9060290.

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The use of electromechanical actuators (EMAs) for aeronautical applications promises substantial benefits regarding efficiency and operability. To advance the design of power electronics and secondary power supply, there is a need for the ability to swiftly study the effects of aircraft mission and operational aspects on the actuator energy consumption. Pursuant to this, the aim of the work presented in this paper is twofold: (i) to build a generic mission-level flight control surface EMA power consumption simulation framework and (ii) to apply this framework to a case study involving a small

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Hsu, Ting-Chia, Hal Abelson, Natalie Lao, and Shih-Chu Chen. "Is It Possible for Young Students to Learn the AI-STEAM Application with Experiential Learning?" Sustainability 13, no. 19 (2021): 11114. http://dx.doi.org/10.3390/su131911114.

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This study attempted to evaluate the learning effectiveness of using the MIT App Inventor platform and its Personal Image Classifier (PIC) tool in the interdisciplinary application. The instructional design was focused on applying PIC in the integration of STEAM (i.e., Science, Technology, Engineering, Art, and Mathematics) interdisciplinary learning, so as to provide sustainable and suitable teaching content based on the experiential learning theory for 7th grader students. Accordingly, the sustainable AI-STEAM course with the experiential learning framework has been implemented and verified,

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Liu, Canchang, Lijun Li, and Yirui Zhang. "Internal Resonance of the Coupling Electromechanical Systems Based on Josephson Junction Effects." Micromachines 13, no. 11 (2022): 1958. http://dx.doi.org/10.3390/mi13111958.

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The internal resonances of the coupling vibration among electro-dynamic modes of an NEMS are studied for the coupling resonators connected on a Josephson junction. The methodology adopted involves coupling a resonator connected on a Josephson junction. The mathematical model of the coupled system is then obtained by considering the regulatory nonlinear effect of the phase difference of that Josephson junction. The resulting dynamic differential equation is deduced by considering the nonlinear terms of the Josephson junction and the nanobeam. The multi-scale method is then used to obtain the 1:

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