Bibliographies thématiques / ELECTROMECHANICAL FRAMEWORK

Littérature scientifique sur le sujet « ELECTROMECHANICAL FRAMEWORK »

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Publié le 11 septembre 2023

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Articles de revues sur le sujet "ELECTROMECHANICAL FRAMEWORK"

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Trayanova, Natalia A., Jason Constantino et Viatcheslav Gurev. « Electromechanical models of the ventricles ». American Journal of Physiology-Heart and Circulatory Physiology 301, no 2 (août 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 detail the general framework of multiscale ventricular electromechanical modeling and describe the state of the art in computational techniques and experimental validation approaches. The powerful utility of ventricular electromechanical models in providing a better understanding of cardiac function is then demonstrated by reviewing the latest insights obtained by these models, focusing primarily on the mechanisms by which mechanoelectric coupling contributes to ventricular arrythmogenesis, the relationship between electrical activation and mechanical contraction in the normal heart, and the mechanisms of mechanical dyssynchrony and resynchronization in the failing heart. Computational modeling of cardiac electromechanics will continue to complement basic science research and clinical cardiology and holds promise to become an important clinical tool aiding the diagnosis and treatment of cardiac disease.
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Zeng, Qing Liang, Bin Zhang, Zhi Hai Liu, Hong Xi Kang et Zai Chao Wu. « Coal Mine Electromechanical Equipment Online Management Platform Development Based on Web ». Applied Mechanics and Materials 220-223 (novembre 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 et 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 (1 février 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 (novembre 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, et Jared Hobeck. « Investigating the Electromechanical Properties of Carbon Black-Based Conductive Polymer Composites via Stochastic Modeling ». Nanomaterials 13, no 10 (14 mai 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 improved simulation fidelity. Modeled predictions are found in agreement with experimental results and compared to predictions from a popular analytical model in the literature.
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Amrhein, Marco, et Philip T. Krein. « 3-D Magnetic Equivalent Circuit Framework for Modeling Electromechanical Devices ». IEEE Transactions on Energy Conversion 24, no 2 (juin 2009) : 397–405. http://dx.doi.org/10.1109/tec.2009.2016134.

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Li, Zhanfeng, Chennakesava Kadapa, Mokarram Hossain et Jiong Wang. « A numerical framework for the simulation of coupled electromechanical growth ». Computer Methods in Applied Mechanics and Engineering 414 (septembre 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 et Hervé Delingette. « Towards an interactive electromechanical model of the heart ». Interface Focus 3, no 2 (6 avril 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 motion of the heart. We demonstrate that pathological mechanical and electrophysiological behaviour can be simulated.
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Moura, Adriane G., et Alper Erturk. « Combined piezoelectric and flexoelectric effects in resonant dynamics of nanocantilevers ». Journal of Intelligent Material Systems and Structures 29, no 20 (12 octobre 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 value of the flexoelectric constant for barium titanate is employed in the model simulations along with its piezoelectric constant from the existing literature. It is shown that the effective electromechanical coupling of a piezoelectric material, such as barium titanate, is significantly enhanced for thickness levels below 100 nm. The electromechanical coupling coefficient of a barium titanate bimorph cantilever increases from the bulk piezoelectric value of 0.065 to the combined piezoelectric–flexoelectric value exceeding 0.3 toward nanometer thickness level. Electromechanical frequency response functions for resonant power generation and dynamic actuation also capture the size-dependent enhancement of the electromechanical coupling. The analytical framework given here can be used for parameter identification and design of nanoscale cantilevers that can be used as energy harvesters, sensors, and actuators.
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Schlegel, Holger, Arvid Hellmich, Kevin Hipp, Johannes Quellmalz et Reimund Neugebauer. « Improved Controller Performance for Electromechanical Axes ». Solid State Phenomena 251 (juillet 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 demonstrated and also be discussed based on experimental results.
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Thèses sur le sujet "ELECTROMECHANICAL FRAMEWORK"

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Cariño, Corrales Jesús Adolfo. « Fault detection and identification methodology under an incremental learning framework applied to industrial electromechanical systems ». Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/458451.

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Condition Based Maintenance is a program that recommends actions based on the information collected and interpreted through condition monitoring and has become accepted since a decade ago by the industry as a key factor to avoiding expensive unplanned machine stoppages and reaching high production ratios. Among the condition based maintenance strategies, data-driven fault diagnosis methodologies have gained increased attention because of the high performance and widen range of applicability due to less restrictive constrains in comparison to other approaches. Therefore, an increased effort is been made to develop reliable methodologies that could diagnose multiple known faults on a machine with initial applications in controlled environments like laboratory test benches. However, applying those methods to industry applications still represent an ongoing challenge due to the multiple limitations involved and the high reliability and robustness required. One of the most important challenges in the industrial sector refers to the management of unexpected events, in respect of how to detect new faults or anomalies in the machine. In addition, the information initially available of the monitored industrial machine is usually limited to the healthy condition, therefore is not only necessary to detect these new scenarios but also incorporate this information to the initial base knowledge. In this regard, this thesis present a series of complementary methodologies that leads to the implementation of a fault detection and identification system capable to detect multiple faults and new scenarios of industrial electromechanical machines under an incremental learning framework to include the new scenarios detected to the initial base knowledge while achieving a high performance and generalization capabilities. Initially, a methodology to increase the performance of novelty detection models to detect unexpected events in electromechanical system is proposed. Then, a methodology to implement a sequential fault detection and identification system composed by a novelty detection and a fault diagnosis stages with high accuracy is proposed. Finally, two different methodologies are proposed to provide the sequential fault detection and identification system the capacity to include new scenarios to the base knowledge. The proposed methodologies have been validated by means of experimental data of laboratory test benches and industrial electromechanical systems.
"Mantenimiento basado en la condición" es un programa que recomienda una serie de medidas preventivas basadas en la información recopilada e interpretada mediante el constante monitoreo de la condición de la maquinaria y ha sido aceptado desde hace una década por la industria como un factor clave para evitar paradas no planificadas de la maquinaria y alcanzar altos índices de producción. Entre las estrategias de mantenimiento basadas en la condición, las metodologías de diagnóstico de fallos basadas en datos han recibido mucha atención debido al alto rendimiento y amplio rango de aplicabilidad, esto se debe que cuentan con menos limitaciones en comparación con otros enfoques. Por lo tanto, se ha hecho un mayor esfuerzo para desarrollar metodologías fiables que puedan diagnosticar múltiples fallos conocidas en una máquina, siendo aplicado inicialmente en entornos controlados como bancadas de laboratorio. Sin embargo, aplicar estos métodos en la industria sigue representando un desafío debido a las múltiples limitaciones implicadas y la alta fiabilidad y robustez requeridas. Uno de los desafíos más importantes en el sector industrial consiste en la gestión de eventos inesperados, específicamente en cómo detectar nuevos fallos o anomalías máquina. Además, la información inicialmente disponible de la máquina industrial monitorizada se limita generalmente al estado sano, por lo tanto, no sólo es necesario detectar estos nuevos escenarios, sino también incorporar esta información al conocimiento base inicial. En este sentido, esta tesis presenta una serie de metodologías complementarias que conducen a la implementación de un sistema de detección e identificación de fallos capaz de detectar múltiples fallos y nuevos escenarios de máquinas electromecánicas industriales en un marco de aprendizaje incremental para incluir los nuevos escenarios detectados al conocimiento base inicial manteniendo un alto rendimiento y capacidades de generalización. Inicialmente, se propone una metodología para aumentar el rendimiento de los modelos de detección de novedad para detectar eventos inesperados en el sistema electromecánico. Después, se propone una metodología para implementar un sistema secuencial de detección e identificación de fallas con alta precisión compuesto por una etapa de detección de novedades y otra de diagnóstico de fallos. Finalmente, se proponen dos metodologías diferentes para proporcionar al sistema secuencial de detección e identificación de fallas la capacidad de incluir nuevos escenarios al conocimiento base. Las metodologías propuestas han sido validadas mediante datos experimentales de bancadas de laboratorio y sistemas electromecánicos industriales.
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Land, Sander. « An integrative framework for computational modelling of cardiac electromechanics in the mouse ». Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:cc71aa3b-70f8-42fc-83c9-4c0b2899f965.

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This thesis describes the development of a framework for computational modelling of electromechanics in the mouse, with the purpose of being able to integrate cellular and tissue scale observations in the mouse and investigate physiological hypotheses. Specifically, the framework is applied to interpret electromechanical coupling mechanisms and the progression of heart failure in genetically modified mice. Chapter 1 introduces the field of computational biology and provides context for the topics to be investigated. Chapter 2 reviews the biological background and mathematical bases for electromechanical models, as well as their limitations. In Chapter 3, a set of efficient computational methods for coupled cardiac electromechanics was developed. Among these are a modified Newton method combined with a solution predictor which achieves a 98% reduction in computational time for mechanics problems. In Chapter 4, this computational framework is extended to a multiscale electromechanical model of the mouse. This electromechanical model includes our novel cardiac cellular contraction model for mice, which is able to reproduce murine contraction dynamics at body temperature and high pacing frequencies, and provides a novel explanation for the biphasic force-calcium relation seen in cardiac myocytes. Furthermore, our electromechanical model of the left ventricle of the mouse makes novel predictions on the importance of strong velocity-dependent coupling mechanisms in generating a plateau phase of ventricular pressure transients during ejection. In Chapter 5, the framework was applied to investigate the progression of heart failure in genetically modified 'Serca2 knockout' mice, which have a major disruption in mechanisms governing calcium regulation in cardiac myocytes. Our modelling framework was instrumental in showing for the first time the incompatibility between previously measured cellular calcium transients and ventricular ejection. We were then able to integrate new experimental data collected in response to these observations to show the importance of beta-adrenergic stimulation in the progression of heart failure in these knockout mice. Chapter 6 presents the conclusions and discusses possibilities for future work.
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Vaculik, Stewart Andrew 1979. « A framework for electromechanical actuator design ». 2008. http://hdl.handle.net/2152/18161.

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Electromechanical actuators are becoming an increasingly popular alternative to traditional hydraulic actuators for ship, aircraft, vehicle suspension, robotic, and other applications. These actuators generally include an electric motor, gear train, bearings, shafts, sensors, seals, and a controller integrated into a single housing. This integration provides the advantages of a single shaft, fewer bearings, and ultimately, reduced weight and volume. Research has shown that the motor and gear train are the most critical, performance-limiting components in an actuator, and balancing the performance parameters (torque, weight, inertia, torque density, and responsiveness) among them is not trivial. The Robotics Research Group currently addresses this task by using intuitive rules of thumb and the designers’ experience, and this often requires multiple design iterations between the motor and gear train. In this regard, this research will provide preliminary guidelines for choosing the gear ratios and relative sizes of the motor and gear train when integrating a switched reluctance motor (SRM) with three different gear trains (hypocyclic gear train (HGT), star gear train coupled with a parallel eccentric gear train (Star+PEGT), and star compound gear train coupled with a parallel eccentric gear train (Star Compound+PEGT)) in the preliminary design stage. Research has also shown that there are cost benefits to developing actuator product families to meet the needs of a particular application domain. In this regard, scaling rules for the SRM, HGT, PEGT, and integrated actuators built from them (with diameters ranging from 6 to 50 inches and gear ratios from 100 to 450) will be developed. These scaling rules describe how the performance parameters vary as the size (diameter and aspect ratio) is varied and are useful for quickly sizing motor, gear train, and actuator designs. These scaling rules are useful for two purposes: 1) learning the relationships between the performance and dominant design parameters and 2) obtaining intermediate sizes not previously considered. The rules will be simple enough for designers to learn and use to make intelligent design parameter choices (purpose 1) but will also have sufficient accuracy for obtaining intermediate designs (purpose 2). The scaling rules are summarized in a series of three-dimensional design maps, with an emphasis on the development of visual decision-making tools. This research also formulates an actuator design procedure that incorporates the two central concepts of this research, balancing parameters and scaling, and this procedure is embedded within computational (MatLab) and solid modeling (SolidWorks) software programs. In addition to developing rules for scaling and balancing parameters, the procedure was also used for the following purposes. First, direct drive and geared actuators were compared in terms of their torque density and responsiveness to determine which alternative is superior for different gear ratio, diameter, and load inertia combinations. Second, alternative minimum sets of actuators were developed for an illustrative application, and the anticipated performance losses due to using common parameters among the sets were quantified.
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Ashok, Pradeepkumar. « Math framework for decision making in intelligetn electromechanical actuators ». Thesis, 2007. http://hdl.handle.net/2152/2990.

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Ashok, Pradeepkumar 1977. « Math framework for decision making in intelligetn electromechanical actuators ». 2007. http://hdl.handle.net/2152/13166.

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McFarland, Kyle Alan. « A performance map framework for maximizing soldier performance ». Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-3201.

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Soldiers in the Unites States Army operate under uniquely demanding conditions with increasingly high performance expectations. Modern missions, including counter-insurgency operations in Iraq and Afghanistan, are complex operations. The Army expects this complexity to continue to increase. These conditions affect Soldier performance in combat. Despite spending billions of dollars to provide Soldiers with better equipment to meet the demands of the modern battlefield, the U.S. Army has dedicated comparatively little resources to measuring and improving individual Soldier performance in real-time. As a result, the Army does not objectively measure a Soldier’s performance at any point in their active duty career. The objective of this report is to demonstrate the utility and feasibility of monitoring Soldier performance in real-time by means of visual 3D performance maps supported by a Bayesian network model of Soldier performance. This work draws on techniques developed at the University of Texas’ Robotics Research Group for increasing performance in electro-mechanical systems. Humans and electro-mechanical systems are both complex and demonstrate non-linear performance trends which are often ignored by simplified analytical models. Therefore, application of empirical Bayesian models with visual presentation of data in 3D performance maps enables rapid understanding of important performance parameters for a specific Soldier. The performance maps can easily portray areas of non-linear performance that should be avoided or exploited, while presenting levels of uncertainty regarding the assessments, thus empowering the individual to make informed decisions regarding control and allocation of resources. The present work demonstrates the utility of visual performance maps by structuring 19 relatively mature 3D performance maps based on published empirical research data and analytical models related to human performance. Based on a broad review of the literature, the present research evaluated 10 potential physiological indicators, termed biomarkers that correlate with human responses to a select set of stressors, referred to as impact parameters. The 10 evaluated impact parameters affect various components of Soldier performance. The present research evaluated the documentation of these relationships in the existing literature with regard to 9 general Soldier performance measures. Identifying the research supported relationships from biomarkers to impact parameters to Soldier performance measures resulted in a preliminary Bayesian Soldier Performance Model, from which it is possible to create 70 distinct 3D performance maps. Based on the quality of the relationships identified in the reviewed literature, and a contemporary evaluation of existing sensor technology for the related biomarkers, the present research assessed 26 of the potential 70 performance maps as being achievable in the near-term. Continuing development of the Soldier Performance Model (SPM) as proposed in this report has the potential to increase Soldier performance while simultaneously improving Soldier well-being, reducing risk of physical and mental injury, and reducing downstream treatment cost.
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VERMA, REETESH. « CONTROLLERS FOR MAGNETIC LEVITATION SYSTEM ». Thesis, 2019. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19394.

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The Ball and Magnetic levitation system is viewed as one of the unsteady and nonlinear electromechanical framework. For the specialist and control engineers adjusting of the nonlinear control framework has become a major test. Ball and Magnetic levitation control framework is viewed as one of the standard issue in control engineering. There are a few regulators, for example, PD regulator, PID regulator and vigorous LQR regulator which have been recognized in the writing and steadiness is likewise broke down for the Ball and attractive levitation framework. Design of regulator has become the significant perspective while designing and modelling of the system and it is likewise critical to dole out an appropriate to provide proper gain to the regulator. In this theory, execution of few control procedures that involve traditional, current and wise regulator for ball and Magnetic levitation framework with an examination among these regulators has been contemplated. LQR being a cutting edge regulator is a full state criticism regulator. The motive behind utilizing LQR calculation is to diminish the calculation burden of the framework. This proposition portrays the exchange work and numerical displaying of the proposed framework. The model of the framework is additionally linearized to be utilized with the direct regulators. Plan of the regulators and its usage is followed utilizing MATLAB/SIMULINK. PID has also been simulated for our control system in MATLAB/SIMULINK. Every individual controller performance is compared and analysed on the basis of common input criteria of step response.
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Agrawal, Manish. « Efficient Simulation Strategies for Electromechanical Systems, Contact Mechanics and Time Finite Elements, within the Framework of Hybrid Finite Elements ». Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4228.

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The purpose of this thesis is to provide robust numerical schemes for various challenging nonlinear large-deformation elasticity problems. The presence of geometric and material nonlinearities poses interesting challenges in the numerical implementation of time finite element methods, multiphysics and contact problems, and it is the goal of this thesis to address these challenges. It is well known that displacement based elements show overstiff behavior known as ‘locking’ for a large class of practical problems with thin structures, structures with high curvature, and almost incompressible material. To alleviate the locking problem associated with displacement based elements, shell elements based on mixed formulations and hybrid elements have been proposed in the literature. However, due to the kinematic assumptions involved in the development of shell elements, the applicability of these elements is limited. Hybrid elements, based on two-field variational principle are hexahedral elements, with no kinematic assumptions involved in their development. Further, hybrid elements have been shown to provide excellent coarse mesh accuracy for a large class of problems. In this thesis, we further develop the hybrid finite element method for the following new class of problems: Developing a quadratic time finite element method for elastodynamics systems For chaotic systems, the quadratic transient time finite element strategy is significantly more efficient and robust as compared to the linear transient scheme. Motivated by this, in the first part of the thesis, we propose a quadratic time finite element strategy for large-deformation elastodynamics systems. The proposed method is a modified time finite element strategy that conserves linear and angular momenta exactly, and energy in an approximate sense, in the fully discrete setting. Further, to obtain good coarse mesh accuracy, the proposed transient strategy is extended to the hybrid element framework. Analysis of electromechanical systems Due to the strong coupling between electromagnetic and displacement fields, there is a need to develop a robust fully-coupled scheme for modeling electromechanical phenomenon. To achieve this, we present a fully-coupled monolithic numerical scheme for modeling electromechanical systems. Further, in view of the superiority of hybrid elements, we extend our monolithic formulation to the hybrid finite element framework. We perform a consistent linearization of the eddy current and structural equations in the reference configuration to ensure a quadratic rate of convergence. Contact analysis using mortar methods In the final part of the thesis, we attempt the classical problem of contact between two bodies under the large-deformation elasticity framework. We use mortar elements to satisfy the geometric constraint of non-penetrability, and provide a detailed expla-nation for using two 2-node linear elements on the edge of a 9-node two-dimensional quadrilateral element for the interpolation of the Lagrangian multiplier. We further propose a new projection technique for enhancing the accuracy of the predicted con-tact pressure. We then extend the above displacement-based formulation to the hybrid framework so as to be able to model the contact of shell-type as well as ‘chunky’ geometries efficiently. 2
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Livres sur le sujet "ELECTROMECHANICAL FRAMEWORK"

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Yuhno, Natal'ya. Mathematics. ru : INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1002604.

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The textbook presents: theoretical material, solved multi-level tasks on topics and practical exercises, test tasks, theoretical questions that form the communicative competence of students in independent work. Meets the requirements of the federal state educational standards of secondary vocational education of the latest generation. It is intended for studying theoretical material and performing independent work in mathematics within the framework of the mandatory hours provided for by the work programs in the discipline PD. 01 "Mathematics: algebra, the beginning of mathematical analysis, geometry" for students of the specialties 23.02.03 "Maintenance and repair of motor transport", 13.02.11"Technical operation and maintenance of electrical and electromechanical equipment (by industry)".
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Chapitres de livres sur le sujet "ELECTROMECHANICAL FRAMEWORK"

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Henrotte, F., et K. Hameyer. « A Mathematical Framework for the Finite Element Modelling of Electromechanical Problems ». Dans Lecture Notes in Computational Science and Engineering, 359–65. Berlin, Heidelberg : Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56470-3_36.

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Choy, Alex W. H., et Daniel P. K. Lun. « Deep Learning Based Structural Health Monitoring Framework with Electromechanical Impedance Method ». Dans Transactions on Engineering Technologies, 13–24. Singapore : Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9808-8_2.

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Magid, Evgeni, Artyom Pashkin, Nikita Simakov, Bulat Abbyasov, Jackrit Suthakorn, Mikhail Svinin et Fumitoshi Matsuno. « Artificial Intelligence Based Framework for Robotic Search and Rescue Operations Conducted Jointly by International Teams ». Dans Proceedings of 14th International Conference on Electromechanics and Robotics “Zavalishin's Readings”, 15–26. Singapore : Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-9267-2_2.

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Zettinig, Oliver, Tommaso Mansi, Bogdan Georgescu, Saikiran Rapaka, Ali Kamen, Jan Haas, Karen S. Frese et al. « From Medical Images to Fast Computational Models of Heart Electromechanics : An Integrated Framework towards Clinical Use ». Dans Functional Imaging and Modeling of the Heart, 249–58. Berlin, Heidelberg : Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38899-6_30.

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Rojac, Tadej. « Piezoelectric Nonlinearity and Hysteresis Arising from Dynamics of Electrically Conducting Domain Walls ». Dans Hysteresis in Engineering [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98721.

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Macroscopic nonlinearity and hysteresis observed in the piezoelectric and dielectric responses of ferroelectric materials to external stimuli are commonly attributed to localized displacements of domain walls (DWs). The link between the macroscopic response and microscopic DW dynamics is provided by the well-known Rayleigh relations, extensively used to quantify the electrical and electromechanical behavior of ferroelectric ceramics and thin films under subswitching conditions. In this chapter, I will present an intriguing case where DWs exhibit enhanced electrical conductivity with respect to the bulk conductivity. By combining experimental data and modeling, it will be shown that the local conductivity, related to accumulation of charged points defect at DWs, does not only affect DW dynamics through DW-defect pinning interactions, as we may expect, but goes beyond it by affecting the macroscopic nonlinearity and hysteresis in a more complex manner. The major characteristics and implications of the underlying nonlinear Maxwell-Wagner piezoelectric relaxation, triggered by the presence and dynamics of conducting DWs, will be presented, reviewed and discussed in the framework of systematic multiscale analyses on BiFeO3 ceramics. The result may have implications in the development of promising BiFeO3-based compositions for high-temperature piezoelectric applications.
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Baccari, Silvio, Giulio Cammeo, Christian Dufour, Luigi Iannelli, Vincenzo Mungiguerra, Mario Porzio, Gabriella Reale et Francesco Vasca. « Real-Time Hardware-in-the-Loop in Railway ». Dans Railway Safety, Reliability, and Security, 221–48. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-1643-1.ch010.

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The increasing complexity of modern ground vehicles is making crucial the role of control for improving energetic efficiency, comfort and performance. At the same time, the control software must be frequently updated in order to let the vehicle respond safely and efficiently within more sophisticated environments and to optimize the operations when new vehicle components are integrated. In this framework real-time hardware-in-the-loop simulations represent a fundamental tool for supporting the verification and validation processes of the control software and hardware. In this chapter a railway case study will be presented. The mathematical models of the most relevant electromechanical components of the vehicle powertrain are presented: the pantograph connected to an ideal overhead line with continuous voltage; the electrical components of a pre-charge circuit, the line filter and the braking chopper; the three-phase voltage source inverter and the induction motor; and, finally, the mechanical transmission system, including its interactions with the rail. Then the issues related to the real-time simulation of the locomotive components models are discussed, concentrating on challenges related to the stiff nature of the dynamic equations and on their numerical integration by combining field programmable gate array (FPGA) and central processing unit (CPU) boards. The usefulness of the real-time hardware-in-the-loop simulations for the analysis of railway control software will be demonstrated by considering the powertrains of two real metropolitan trains under complex scenarios, i.e., stator winding disconnection of the induction motor, pantograph missing contact, wheel-rail slipping phenomenon.
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Actes de conférences sur le sujet "ELECTROMECHANICAL FRAMEWORK"

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Liu, Haigang, et Shouzhao Sheng. « A Fault Diagnosis Framework for Aircraft Electromechanical System ». Dans 2021 IEEE 16th Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2021. http://dx.doi.org/10.1109/iciea51954.2021.9516158.

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Tian, Chunbo, Haoran Zhao, Junchao Diao et Bing Li. « Electromagnetic and Electromechanical Hybrid Simulation Based on Mosaik Framework ». Dans 2020 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia). IEEE, 2020. http://dx.doi.org/10.1109/icpsasia48933.2020.9208522.

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Drighiciu, Mircea Adrian. « Hybrid Petri nets : A framework for hybrid systems modeling ». Dans 2017 International Conference on Electromechanical and Power Systems (SIELMEN). IEEE, 2017. http://dx.doi.org/10.1109/sielmen.2017.8123285.

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Chapon, Damien, Fabien Hospital, Guillaume Bouchez et Marc Budinger. « A Modelica-Based and Domain-Specific Framework for Electromechanical System Design ». Dans The 8th International Modelica Conference, Technical Univeristy, Dresden, Germany. Linköping University Electronic Press, 2011. http://dx.doi.org/10.3384/ecp11063133.

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Ou, Shudong, Sen Li, Changqing Wu, Mourui Luo et Ming Zhao. « A health self-sensing framework for electromechanical equipment using encoder signal ». Dans 2022 IEEE International Conference on Sensing, Diagnostics, Prognostics, and Control ( SDPC). IEEE, 2022. http://dx.doi.org/10.1109/sdpc55702.2022.9915844.

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朱, 玲娜, Kai Ren et Jinyun Pu. « Framework case decision reasoning method integrating multiple information ». Dans Sixth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2021), sous la direction de Qingsehng Zeng. SPIE, 2022. http://dx.doi.org/10.1117/12.2624660.

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Liao, Guomin, Jing Hu, Weiling Chen, Jingcheng Xiao et Shujie Shen. « Design of supercharger visual platform based on Django framework ». Dans Third International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2022), sous la direction de Shuangming Yang et Guanglei Wu. SPIE, 2022. http://dx.doi.org/10.1117/12.2646818.

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Peralta, Patricio, Rafael O. Ruiz et Viviana Meruane. « Bayesian Framework to Quantify Uncertainties in Piezoelectric Energy Harvesters ». Dans ASME 2018 Verification and Validation Symposium. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/vvs2018-9318.

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The interest of this work is to describe a framework that allows the use of the well-known dynamic estimators in piezoelectric harvester (deterministic performance estimators) but taking into account the random error associated to the mathematical model and the uncertainties on the model parameters. The framework presented could be employed to perform Posterior Robust Stochastic Analysis, which is the case when the harvester can be tested or it is already installed and the experimental data is available. In particular, it is introduced a procedure to update the electromechanical properties of PEHs based on Bayesian updating techniques. The mean of the updated electromechanical properties are identified adopting a Maximum a Posteriori estimate while the probability density function associated is obtained by applying a Laplaces asymptotic approximation (updated properties could be expressed as a mean value together a band of confidence). The procedure is exemplified using the experimental characterization of 20 PEHs, all of them with same nominal characteristics. Results show the capability of the procedure to update not only the electromechanical properties of each PEH (mandatory information for the prediction of a particular PEH) but also the characteristics of the whole sample of harvesters (mandatory information for design purposes). The results reveal the importance to include the model parameter uncertainties in order to generate robust predictive tools in energy harvesting. In that sense, the present framework constitutes a powerful tool in the robust design and prediction of piezoelectric energy harvesters performance.
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Prakash, Naveen, et Gary D. Seidel. « A Coupled Electromechanical Peridynamics Framework for Modeling Carbon Nanotube Reinforced Polymer Composites ». Dans 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-0936.

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Lu, Yang, Xiaoli Qiu et Yan Xing. « Digital Twin-Based Operation Simulation System and Application Framework for Electromechanical Products ». Dans 2021 International Conference on Computer, Control and Robotics (ICCCR). IEEE, 2021. http://dx.doi.org/10.1109/icccr49711.2021.9349373.

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