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The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are:
- Physics and mechanics of electromagnetic materials and devices
- Computational electromagnetic in materials and devices
- Applications of electromagnetic fields and forces
The three interrelated key subjects - materials, electromagnetics and mechanics - include the following aspects: control, micromachines, intelligent structure, inverse problem, eddy current analysis, electromagnetic NDE, magnetic materials, magnetoelastic effects in materials, bioelectromagnetics, magnetosolid mechanics, magnetic levitations, applied physics of superconductors, superconducting magnet technology, superconducting propulsion system, nuclear fusion reactor components and wave propagation in electromagnetic fields.
Authors: Bouali, Ferroudja | Mohellebi, Hassane
Article Type: Research Article
Abstract: The present work concerns the study of the effect of variation of the thickness of 2D cylindrical test-piece and lift-off (the air gap between the sensor and the test-piece) on the sensor response in case of transient source current. The coupled circuit’s method employed is based on the mutual’s inductances calculation and with the association to Kirchhoff laws it yields to a transient algebraic equations system which is solved at each time step. The method is applied to the study of the pulsed eddy currents in cylindrical and axisymmetric device with electrical conductivity and geometrical dimensions variations.
Keywords: Coupled electric circuits, pulsed eddy current, non destructive testing and evaluation, geometry and physical properties, lift-off
DOI: 10.3233/JAE-230141
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. Pre-press, no. Pre-press, pp. 1-9, 2023
Authors: Kimme, Jonas | Gruner, Jonas | Fröhlich, Alexander | Kroll, Martin
Article Type: Research Article
Abstract: Additive manufacturing is becoming increasingly widespread and has developed very dynamically in recent years. For the processing of metals, powder or wire is usually used as the feedstock. The energy source used in wire-based processes is usually electric arcs or lasers. In this contribution, a technological approach for additive manufacturing of metal structures by induction melting with pulsed generator power is used. Therefore, the principle of oscillating Lorentz forces is utilized in this approach and analytically investigated with the aid of a FE simulation model. In the experiments, a continuously fed steel wire is inductively melted and deposited dropwise onto …a substrate heated to different preheating temperatures without the use of a nozzle or crucible. Show more
Keywords: Induction melting, additive manufacturing, directed energy deposition, induction preheating, mild steel, wire feedstock, pulsed power
DOI: 10.3233/JAE-230183
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. Pre-press, no. Pre-press, pp. 1-12, 2024
Authors: Pascual, Alberto | Acero, Jesus | Narvaez, Alexis | Carretero, Claudio
Article Type: Research Article
Abstract: The analysis of the magnetic properties of alloys with low Curie temperature used in domestic induction heating is presented. These alloys allow the development of cookware with additional benefits with respect to regular cookware oriented to improve temperature control and the user’s safety. Firstly, an experimental method to characterize the magnetic permeability with respect to the magnetic field strength and temperature in the material is presented. Secondly, a finite element simulation method is proposed which, considering the previous characterization, allows the calculation of the electrical equivalent of an inductor-load system as a function of temperature and magnetic field. This method …makes possible the application of finite element simulation in the frequency domain with nonlinear materials, which is of interest for the design of electronics associated with domestic applications of induction heating. Simulation results are experimentally verified with various ferromagnetic alloys with low Curie temperature at different power, temperature, and operating frequency ranges. Show more
Keywords: Domestic induction heating, electromagnetic characterization, finite element modeling
DOI: 10.3233/JAE-230166
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. Pre-press, no. Pre-press, pp. 1-10, 2024
Authors: Chen, Rongli | Zheng, Xiupeng | Li, Xudong | Qiao, Liang | Deng, Jie | Chen, Hong-En | Yang, Juancheng | Chen, Zhenmao
Article Type: Research Article
Abstract: It is important to measure the global and/or local velocity of an in-pipe metallic flow to control its running state in applications such as a Tokamak fusion reactor. The magnetic field outside the pipe wall will be perturbed by the motion induced eddy current when the liquid metal flows across an applied static magnetic field. This phenomenon gives a possibility to evaluate the in-pipe velocity from the measured magnetic field perturbation signals. In this paper, a non-intrusive velocity evaluation method is proposed accordingly for measuring the velocity of liquid metal through measurement and inversion of the magnetic field surrounding the …pipe. An efficient forward simulation method to calculate the magnetic field near a metallic flow in a static environmental magnetic field is developed at first. An inversion scheme based on the singular value decomposition and the L-curve method is then proposed to reconstruct the velocity distribution at a pipe cross-section with the linear equations correlating the flow velocity and the magnetic field regulated using the Tikhonov method. The reconstruction results of pipe flows of different velocity modes verified the feasibility and efficiency of the proposed velocity measurement method for in-pipe metallic flows. Show more
Keywords: Liquid metal, velocity distribution, magnetic field measurement, inverse analysis
DOI: 10.3233/JAE-230149
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. Pre-press, no. Pre-press, pp. 1-11, 2024
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