Academic literature on the topic 'Magneto-Mechanical optimization'

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Journal articles on the topic "Magneto-Mechanical optimization":

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Tornincasa, Stefano, Maurizio Repetto, Elvio Bonisoli, and Francesco Di Monaco. "Optimization of magneto-mechanical energy scavenger for automotive tire." Journal of Intelligent Material Systems and Structures 23, no. 18 (December 20, 2011): 2055–64. http://dx.doi.org/10.1177/1045389x11430741.

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This article presents multidisciplinary optimization methods applied to the design and performance evaluation of a magneto-mechanical energy scavenger for automotive wireless tire sensors. Optimal performance strictly depends on source characteristics, volume, weight and power density targets, energy scavenger typology, technological and manufacturing capabilities, optimization and reliability of performance, environment requirements, and so on. Thus an optimization study has been conducted on equivalent viscous damping due to strong magneto-electrical-mechanical coupling. To do this, an optimization tool has been developed that maximizes the power output in specific working conditions by varying the number and size of coils.
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Meng, Wei Jia, Zhan Wen Huang, Yan Ju Liu, Xiao Rong Wu, and Yi Sun. "Structural Optimization Design of MR Fluid Clutch." Materials Science Forum 546-549 (May 2007): 1673–76. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.1673.

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Magnetorheological (MR) fluids are suspensions of micron sized ferromagnetic particles dispersed in varying proportions of a variety of non-ferromagnetic fluids. MR fluids exhibit rapid, reversible and significant changes in their rheological (mechanical) properties while subjected to an external magnetic field. In this paper, a double-plate magneto-rheological fluid (MRF) clutch with controllable torque output have been designed. Electromagnetic finite element analysis is used to optimize the design of the clutch by using the commercial FEA software ANSYS.
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Zhang, Tieshan, and Zhong Ren. "Optimal Design of Machine Tool Vibration Reduction Based on Magneto-rheological Damper." Journal of Physics: Conference Series 2246, no. 1 (April 1, 2022): 012038. http://dx.doi.org/10.1088/1742-6596/2246/1/012038.

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Abstract This paper takes the three - way redundant drive parallel machine tool as research object, designs a magneto-rheological damper with displacement amplification function and simulates the magnetic circuit saturation of the damper by the Ansys workbench finite element analysis software, so that the output of the damper comes to optimization. The research results show that the magnetic field distribution is more reasonable, and the mechanical properties of the damper are improved. The optimization method is feasible and effective.
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Vallone, G., B. Auchmann, M. Maciejewski, and J. Smajic. "Magneto-Mechanical Optimization of Cross-Sections for $ \text{cos}(\theta)$Accelerator Magnets." IEEE Transactions on Applied Superconductivity 32, no. 6 (September 2022): 1–5. http://dx.doi.org/10.1109/tasc.2022.3155528.

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Lee, Dong-Gun, Yun Cheol Kim, and Dong Ryeol Lee. "Mechanical and magnetic optimization of a magneto-thermoelectric generator for thermal energy harvesting." Journal of the Korean Physical Society 78, no. 8 (March 24, 2021): 723–28. http://dx.doi.org/10.1007/s40042-021-00138-7.

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Apicella, Valerio, Carmine Stefano Clemente, Daniele Davino, Damiano Leone, and Ciro Visone. "Magneto-mechanical optimization and analysis of a magnetostrictive cantilever beam for energy harvesting." Journal of Magnetism and Magnetic Materials 475 (April 2019): 401–7. http://dx.doi.org/10.1016/j.jmmm.2018.11.076.

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Takezawa, Akihiro, Jaewook Lee, and Mitsuru Kitamura. "Design methodology of magnetic fields and structures for magneto-mechanical resonator based on topology optimization." Optimization and Engineering 19, no. 1 (April 22, 2017): 19–38. http://dx.doi.org/10.1007/s11081-017-9356-3.

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Dapino, Marcelo J., and Suryarghya Chakrabarti. "Modeling of 3D Magnetostrictive Systems with Application to Galfenol and Terfenol-D Actuators." Advances in Science and Technology 77 (September 2012): 11–28. http://dx.doi.org/10.4028/www.scientific.net/ast.77.11.

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This work presents a unified approach to model three dimensional magnetostrictive transducers. Generalized procedures are developed for incorporating nonlinear coupled constitutive behavior of magnetostrictive materials into an electro-magneto-mechanical finite element modeling framework. The finite element model is based on weak forms of Maxwell's equations for electromagnetics and Navier's equations for mechanical systems. An implicit time integration scheme is implemented to obtain nonlinear dynamic system responses. The model is implemented into a finite element (FE) solver and applied to two case studies, a Galfenol unimorph actuator and a magnetohydraulic Terfenol-D actuator for active engine mounts. Model results are compared with experiments, and parametric analyses are conducted which provide guidelines for optimization of actuator design.
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Sun, Kyung Ho, and Yoon Young Kim. "Layout design optimization for magneto-electro-elastic laminate composites for maximized energy conversion under mechanical loading." Smart Materials and Structures 19, no. 5 (March 23, 2010): 055008. http://dx.doi.org/10.1088/0964-1726/19/5/055008.

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Shen, Hongxian, Jingshun Liu, Huan Wang, Dawei Xing, Dongming Chen, Yanfen Liu, and Jianfei Sun. "Optimization of mechanical and giant magneto-impedance (GMI) properties of melt-extracted Co-rich amorphous microwires." physica status solidi (a) 211, no. 7 (May 7, 2014): 1668–73. http://dx.doi.org/10.1002/pssa.201431072.

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Dissertations / Theses on the topic "Magneto-Mechanical optimization":

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Cherrière, Théodore. "Élaboration de méthodes et d'outils logiciels pour l'optimisation topologique magnéto-mécanique de machines électriques tournantes." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST159.

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Dans le contexte de la transition énergétique et de l'électrification des usages, l'amélioration des performances des actionneurs électromagnétiques passe obligatoirement par des processus d'optimisation du dimensionnement. De telles méthodologies ont d'ores et déjà été mises en place, mais se focalisent principalement sur des géométries préalablement paramétrées, ce qui limite l'espace des possibles. Les travaux menés dans le cadre de cette thèse visent alors à mettre en place une méthodologie d'optimisation topologique efficace, capable de répartir au mieux les distributions de matériaux (fer, air, conducteurs, aimants) nécessaires pour générer une machine synchrone dans sa globalité, sans paramétrage de sa géométrie. Pour ce faire, une méthodologie d'optimisation topologique multi-matériaux à densité a été développée. Son application à l'optimisation d'un stator triphasé met en évidence l'importance des procédés de pénalisation, de filtrage et de contrôle sur l'algorithme d'optimisation. La méthodologie est ensuite étendue à la conception d'une machine entière : bien que performantes, les meilleures structures obtenues comportent des barrières de flux sans tenue mécanique. Après incorporations de contraintes de rigidité des rotors, la méthode aboutit à des structures performantes et connexes en un temps de calcul raisonnable, ce qui démontre la pertinence de ce type d'approches dans la conception d'actionneurs électromagnétiques. À terme, l'intégration de l'ensemble des physiques qui interviennent dans les spécifications du cahier des charges dès les phases préliminaires permettrait d'économiser temps et argent dans la conception de machines électriques innovantes
In the context of energy transition and the electrification of applications, improving the performance of electromagnetic actuators inevitably involves dimensioning optimization processes. Such methodologies have already been implemented but focus mainly on previously parameterized geometries, which limits the space of possibilities. This thesis aims to develop an efficient topological optimization methodology capable of optimizing the distribution of materials (iron, air, conductors, magnets) required to generate a synchronous machine in its entirety without parameterizing its geometry. To this end, a multi-material density topological optimization methodology has been developed. Its application to optimizing a three-phase stator highlights the importance of penalization, filtering, and control processes in the optimization algorithm. The procedure is then extended to the design of an entire machine: although efficient, the best structures obtained include flux barriers with no mechanical strength. After incorporating rotor stiffness constraints, the method produces high-performance, related structures in a reasonable computation time, demonstrating the relevance of this type of approach to the design of electromagnetic actuators. Eventually, integrating all the physics involved in specifications right from the preliminary phases will save time and money in designing innovative electrical machines
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Pham-Quang, Phuong. "Modélisation magnéto-mécanique d'un nano commutateur. Optimisation sous contraintes de fiabilité par dérivation automatique des programmes en Java." Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENT060/document.

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Les nano commutateurs magnétiques sont en cours d'étude et ils sont envisageables dans plusieurs domaines d'application comme les interrupteurs d'alimentation, les convertisseurs DC/DC...etc. Partant du besoin de modélisation et d'optimisation avec fiabilité de ces dispositifs, ces travaux de thèse se décomposent en trois axes. Axe modélisation : développement d'un modèle semi analytique pour calculer la déformation avec l'analyse de contact mécanique. Ce modèle a été introduit pour le couplage magnéto-mécanique dans le logiciel de modélisation de MEMS magnétiques MacMMems. Axe dérivation automatique de code : développement de JAP (Java Jacobian Automatic Programming) qui est un outil générique de dérivation d'algorithmes. Il a été appliqué pour le nano commutateur et a été introduit dans les outils de dimensionnement développés au G2Elab pour l'analyse de sensibilité, pour l'optimisation exploitant le Jacobien et aussi pour orienter des systèmes d'équations algébro-différentiels. Axe optimisation : mise en œuvre du modèle et des outils développés pour faire l'étude de sensibilité et l'optimisation sous contraintes de fiabilité du nano commutateur magnétique
Magnetic nano switches are being studied and they are envisaged in several application areas such as power switches, DC / DC converters …etc. Hence the need for modelling and optimization with reliability of these devices, this thesis work is divided into three areas. Modelling: development of a semi analytical model to calculate the deformation with the analysis of mechanical contact. This model was introduced in the “MacMMems” software dedicated to the modelling of magnetic MEMS. Automatic differentiation : development of JAP (Java Jacobian Automatic Programming) is a generic algorithms derivation program. It has been applied to the nano switch and was introduced in G2Elab design tools for sensitivity analysis, for optimizing and also to solve differential-algebraic systems. Optimization: development the model and tools to study the sensitivity and reliability-based design optimization for magnetic nano switch

Book chapters on the topic "Magneto-Mechanical optimization":

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Tornincasa, Stefano, Maurizio Repetto, Elvio Bonisoli, and Francesco Di Monaco. "Robust Optimization of Magneto-Mechanical Energy Harvesters for Shoes." In Special Topics in Structural Dynamics, Volume 6, 571–76. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6546-1_60.

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Ojha, Bhupesh. "Geometry Optimization of Magneto-Rheological Damper Based on Magnetic Saturation." In Lecture Notes in Mechanical Engineering, 699–705. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8704-7_86.

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"Magneto-sensitive, ionic and electro-active elastomers Optimization of mechanical properties of magneto-sensitive elastomers by applying hybrid-magnetic fillers." In Constitutive Models for Rubber IX, 649–54. CRC Press, 2015. http://dx.doi.org/10.1201/b18701-113.

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Conference papers on the topic "Magneto-Mechanical optimization":

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Shim, Hokyung, and Semyung Wang. "Topology Optimization of Magneto-Mechanical Systems Considering Magnetic Force and Magnetostriction." In 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
16th AIAA/ASME/AHS Adaptive Structures Conference
10t
. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-1711.

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Grinberg, I., J. Kim, and G. Bahl. "EIGENMODE OPTIMIZATION AND TOPOLOGICALLY PROTECTED STATES IN MAGNETO-MECHANICAL ULF TRANSMITTER ARRAYS." In 2018 Solid-State, Actuators, and Microsystems Workshop. San Diego: Transducer Research Foundation, 2018. http://dx.doi.org/10.31438/trf.hh2018.99.

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Apicella, V., C. S. Clemente, D. Davino, D. Leone, and C. Visone. "Magneto-mechanical Optimization and Analysis of a Magnetostrictive Cantilever Beam for Energy Harvesting." In 2018 IEEE International Magnetic Conference (INTERMAG). IEEE, 2018. http://dx.doi.org/10.1109/intmag.2018.8508718.

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Santapuri, Sushma, and Stephen E. Bechtel. "Model-Based Optimization of Coupled Thermo-Electro-Magneto-Mechanical Behavior of Load-Bearing Antennas." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38786.

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Load-bearing antennas are multi-functional sensing (actuating) and receiving (detecting) devices that are integrated with a load-bearing structure. These antennas are appealing for military applications, importantly Unmanned Aerial Vehicles (UAV). The antenna structure is subjected to mechanical forces, temperature gradients, and electromagnetic fields, giving rise to highly-coupled nonlinear thermo-electro-magneto-mechanical (TEMM) behavior. In the present work, we have developed analytical techniques and computational tools for multi-scale, multi-physics modeling of composite load-bearing antennas, specific to UAV applications. Our mathematical model, based predominantly on first principles, employs the thermomechanical governing equations (i.e., conservation of mass, momentum, angular momentum, energy and second law of thermodynamics) coupled with Maxwells equations. The macro-scale coupling terms that characterize the thermo-mechanical and electromagnetic interactions are deduced from micro-scale behavior. Our modeling has identified 92 nondimensional numbers which quantify the competition between physical effects in the operation of load-bearing antenna. Depending on the design of the structure and nature of the excitation, only a subset of physical effects are dominant, which dictates the appropriate computational model. A fixed relative ordering of all competing effects as quantified by nondimensional numbers, determines a regime of antenna/environment interaction. The mathematical structure of leading-order equations for various physical regimes is presented for use in the optimization and analysis of coupled TEMM behavior of load-bearing antennas.
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Graham, Frank C., Chaitanya Mudivarthi, Supratik Datta, and Alison B. Flatau. "Development and Validation of a Bidirectional Magneto-Mechanical Coupled Actuator Model." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-565.

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The bidirectionally coupled magnetoelastic model (BCMEM) developed by [1] has been modified to include electric currents in its magnetic finite element formulation. This enables the model to capture the magnetoelastic behavior of magnetostrictive materials subjected to elastic stresses and magnetic fields applied not only by permanent magnets but also by current carrying coils used often in actuator applications. This model was implemented by combining COMSOL Multiphysics 3.4 (Finite Element Modeling software) with an energy-based non-linear magnetomechanical constitutive model. The coupling variables are magnetostriction and magnetic permeability that are dependent on both magnetic (magnetic flux density) and mechanical (stress) properties. In this research, the BCMEM was used to simulate actuator load lines for a magnetostrictive Fe84Ga16 alloy, which were then compared to experimental data [2]. Also, the ability of the model to capture the presence of the ΔE effect in Galfenol was demonstrated using the BCMEM. Finally, the use of the BCMEM to as a tool for transducer design optimization is demonstrated by using the model to visualize the influence of different magnetic circuit designs on transducer performance.
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Tweedy, Oliver, Yusuf Akcay, Paolo Giangrande, and Michael Galea. "Magneto-mechanical Design and Development of a Coaxial Magnetic Coupling with Optimization of Torque to Mass Ratio." In 2021 IEEE International Electric Machines & Drives Conference (IEMDC). IEEE, 2021. http://dx.doi.org/10.1109/iemdc47953.2021.9449544.

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McCarthy, Patrick T., Stephen L. Hodson, Timothy D. Sands, and Timothy S. Fisher. "Carbon Nanotube Interfaces for Magneto Thermoelectric Actuation." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22810.

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Magneto thermoelectric generator cell technology uses the ferromagnetic phase transition of gadolinium to drive the movement of a diaphragm ‘shuttle’ whose mechanical energy can be converted to electrical form and which enhances heat transfer through both conduction and convection. This paper describes the thermal behavior of gadolinium foils used in magneto thermoelectric generator cells that, in conjunction with a planar array of similar devices, would form a thermal backplane to a solar photovoltaic panel. In this scenario, the backplane operates as a self-powered cooling device that can simultaneously convert thermal energy to electrical energy as well as improve photovoltaic efficiency through active cooling. This form of energy harvesting and enhancement shows the potential of increasing the energy density of silicon photovoltaic panels. The synthesis and characterization of thermal interfaces applied to the gadolinium shuttles and hot/cold substrates are described. Carbon nanotube arrays are implemented as the thermal interfaces, and their performance under static conditions is assessed. Optimization of the carbon nanotube interfaces on the gadolinium shuttles is achieved using photoacoustic experiments for measuring the thermal interface resistances above and below the gadolinium foil. Carbon nanotube growth studies on gadolinium demonstrated a reduction in thermal interface resistances from 28.8 ± 2.1 mm2K/W to as low as 17.9 ± 0.8 mm2K/W. Initial design, fabrication, and experimental techniques and results are presented in this paper.
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Hasanyan, Davresh J., Satenik Harutyunyan, and Robert B. Davis. "Modeling of Ferromagnetic-Ferroelectric-Substrate Multilayer Composites: Optimization of Volume Ratio Effect." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-40059.

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The volume ratio between piezoelectric and magnetostrictive phases is an important parameter for magneto-electric (ME) composites. The ME voltage coefficients can be enhanced greatly at optimum volume ratio. However, no previous report has focused on the study of the volume ratio effect on ferromagnetic-ferroelectric-substrate multilayer composites. We consider an arbitrary laminated structure of length 2L and N layers. In this case, there is no middle plane of the bar that can serve as a plane of symmetry. For simplicity we assume that the multilayer structure is two dimensional (i.e. bar structure), and the field functions depending only on the space coordinates X1, X2. In the Cartesian system of coordinates the X1 axis is directed along the bar length, the X2 -across the width, and X3 is orthogonal to X1 and X2. It is assumed that piezoelectric layers are poled in the X1 direction (L-L mode). It should be mentioned that the proposed theory can be successfully applied to multilayer structures when the polarization direction of the piezoelectric layers is along the X2 direction, or when some of them are along the X1, and others along X2, or X3 directions. An averaging method is used for deriving effective material parameters of composites. We consider only (symmetric) extensional deformation in this model and at first ignore any (asymmetric) flexural deformations of the layers that would lead to a position dependent elastic constants and the need for other methods to be applied. Using the continuity conditions for magnetic and electric fields, as well as the open and closed circuit conditions, one obtains the analytic expression for longitudinal ME voltage coefficient, which depends on electro-mechanical material properties and thicknesses of the layers. Analytical expression for ME coefficient allows us to find the optimal volume ratio of layers, for which the ME coefficient approaches to its maximum value.
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Zhuang, Ran, Jiawei Tian, Apostolos Tassiopoulos, Chandramouli Sadasivan, Xianfeng David Gu, and Shikui Chen. "Designing Programmable Ferromagnetic Soft Metastructures for Minimally Invasive Endovascular Therapy." In ASME 2023 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/detc2023-116342.

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Abstract Minimally invasive endovascular therapy (MIET) is an innovative technique that utilizes percutaneous access and transcatheter implantation of medical devices to treat vascular diseases. However, conventional devices often face limitations such as incomplete or suboptimal treatment, leading to issues like recanalization in brain aneurysms, endoleaks in aortic aneurysms, and paravalvular leaks in cardiac valves. In this study, we introduce a new metastructure design for MIET employing re-entrant honeycomb structures with negative Poisson’s ratio (NPR), which are initially designed through topology optimization and subsequently mapped onto a cylindrical surface. Using ferromagnetic soft materials, we developed structures with adjustable mechanical properties called magnetically activated structures (MAS). These magnetically activated structures can change shape under noninvasive magnetic fields, letting them fit against blood vessel walls to fix leaks or movement issues. The soft ferromagnetic materials allow the stent design to be remotely controlled, changed, and rearranged using external magnetic fields. This offers accurate control over stent placement and positioning inside blood vessels. We performed magneto-mechanical simulations to evaluate the proposed design’s performance. Experimental tests were conducted on prototype beams to assess their bending and torsional responses to external magnetic fields. The simulation results were compared with experimental data to determine the accuracy of the magneto-mechanical simulation model for ferromagnetic soft materials. After validating the model, it was used to analyze the deformation behavior of the plane matrix and cylindrical structure designs of the Negative Poisson’s Ratio (NPR) metamaterial. The results indicate that the plane matrix NPR metamaterial design exhibits concurrent vertical and horizontal expansion when subjected to an external magnetic field. In contrast, the cylindrical structure demonstrates simultaneous axial and radial expansion under the same conditions. The preliminary findings demonstrate the considerable potential and practicality of the proposed methodology in the development of magnetically activated MIET devices, which offer biocompatibility, a diminished risk of adverse reactions, and enhanced therapeutic outcomes. Integrating ferromagnetic soft materials into mechanical metastructures unlocks promising opportunities for designing stents with adjustable mechanical properties, propelling the field towards more sophisticated minimally invasive vascular interventions.
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Guo, Yingfu, Guiqing Tang, and Wenyun Wang. "Research on working clearance optimization for non-contact stress detection with magneto-elastic stress sensor." In Sixth International Symposium on Precision Mechanical Measurements, edited by Shenghua Ye and Yetai Fei. SPIE, 2013. http://dx.doi.org/10.1117/12.2035928.

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