J. Golebiowski, S. Milcarz
 Department of Semiconductor and Optoelectronics Devices, Technical University of Lodz, Lodz, Poland
The silicon cantilever with the planar coil was applied to the magnetic flux density measurements. The influence of shape and dimensions of planar coil on magnetic energy density was described. In cause of magnetic anisotropy of analyzed silicon structure FEM method and couple field method was applied in simulation. The Lorentz force based sensors owing to their potentially simpler ...
Multiphysics Process Simulation of the Electromagnetic-Supported High Power Laser Beam Welding of Austenitic Stainless Steel
M. Bachmann, V. Avilov, A. Gumenyuk, M. Rethmeier
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
The application of an oscillating magnetic field on the high-power full-penetration laser beam welding process of a 20 mm thick stainless steel plate was numerically and experimentally investigated. In the simulations, three-dimensional heat transfer and fluid dynamics as well as electromagnetics were solved taking into account the most important physical effects of the process, namely the ...
J. L. Muñoz , D. de Cos , I. Madariaga , I. Bustinduy 
 ESS-Bilbao, Bilbao, Spain
The design of ESS-Bilbao RFQ (RadioFrequency Quadrupole) linear accelerator cavity using COMSOL Multiphysics is presented. The work includes geometry definition, electrostatics, electromagnetic and thermomechanical coupled simulations. The main part of the work corresponds to the electromagnetic design. Geometry construction and meshing is very challenging, involving large models (3 m long) with ...
G. Klein , J. Morelli , T. Krause ,
 Queen's University, Kingston, ON, Canada
 Royal Military College of Canada, Kingston, ON, Canada
Two different Finite Element Method (FEM) models of the CANDU® nuclear fuel channels were compared against experimental data to determine if the curvature of the fuel channels is necessary to consider for measurements of the pressure tube to calandria tube gap. The different models were compared against experimental measurements under variations in the wall thickness of the pressure tube. For ...
J. Golebiowski ,
 Dept. of Semiconductor and Optoelectronics Devices, Lodz University of Technology, Lodz, Poland
The transducer's construction used for current measurement in medium voltage power lines for current values kA is shown. The transducer involves magnetic circuit with a gap in which a MEMS structure with a movable cantilever is placed. The beam is made of silicon with a NiFe layer. The beam with the ferromagnetic layer is deflected due to effecting magnetic field. The deflection of the beam is ...
A.Weddemann, D. Kappe, and A. Hütten
Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge MA, USA
Department of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, Bielefeld, Germany
In principal, the calculation of the magnetic state inside a magnetic object requires the evaluation of the field in the entire unbounded space. With finite element methods restricted to finite domains, commonly auxiliary domains are employed which result in a non-physical cut-off. Not only are these additional domains result in an increased number of degrees of freedom which are strictly ...
M. Alsharif, P. Wallace, D. Hepburn, C. Zhou
Department of Physics, Faculty of Arts, Sebha University, Sebha, Libya
School of Engineering & Computing, Glasgow Caledonian University, Glasgow, United Kingdom
Introduction: Failure in cable insulation is generally preceded by a degradation phase that may last several years. A significant cause of cable system failures is the breakdown of electrical insulation between the electrodes. The operational stresses that occur in cable insulation which include thermal, mechanical and electrical effects will vary with time and can cause degradation due to the ...
Electro Thermal Performance Prediction of Radio Frequency Ablation System for Efficient Cancer Treatment
C. Thiagarajan, V. Gnanasekar
ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka, India.
Perfint Healthcare Pvt. Ltd, T.Nagar, Chennai, India.
Cancer causes significant human deaths. Radiofrequency ablation is an encouraging procedure for cancer treatment. The objective is to demonstrate the multiphysics simulation methodology. This paper summarizes the problem , governing equations, methodology, assumptions, simulation results and discussion related to the thermal performance prediction of radio frequency ablation on a homogeneous ...
Using the Electrical Field Analysis for Assessment of the Influence of Paper Insulation on Discharge Initiation in Oil
P. Rozga, D. Hantsz
Technical University of Lodz, Lodz, Poland
Conclusions about the influence of paper insulation on the electrical discharge initiation in mineral oil may be drawn on the basis of experimental studies. However, in some cases, these conclusions may be supported by electrical field analysis. Determination of maximum values of electrical field stress in the vicinity of model electrode setups may bring a new information about initiation ...
G. Marti , L. Arnaud , Y. Wouters 
 STmicrolectronics & Univ. Grenoble Alpes-SIMAP, France
 Cea-Leti Minatec, Grenoble, France
 Univ. Grenoble Alpes-SIMAP, Grenoble, France
Electromigration induced failure is one of the main reliability issues for the microelectronics industry. The continuous scaling of the interconnect dimensions leads to higher operating current densities and temperatures, which accentuates the electromigration failure. As a consequence, electromigration still poses challenges for the development of the new technological nodes. Electromigration ...