T. Müller, A. Schwenger, and H. Haase
Institut für Grundlagen der Elektrotechnik und Messtechnik, Leibniz Universität Hannover, Germany
Volkswagen AG, Germany
This paper describes the automatic optimization of an electromagnetic actuator using a genetic algorithm. The actuator modeled here is dedicated for charge changing valve actuation in internal combustion engines. In the first step of the simulation, several operating points are calculated using the script language of COMSOL Multiphysics. In order to reduce computation time, only one segment of ...
M. Valentinuzzi, E. Ceccolini, D. Mostacci, M. Sumini, F. Rocchi
Montecuccolino Nuclear Engineering Laboratory, University of Bologna, Bologna, Italy
UTFISSM-PRONOC, ENEA, Bologna, Italy
The electron beam emitted backward by Plasma Focus devices is being investigated as a radiation source for IORT (Intra-Operative Radiation Therapy) applications. A Plasma Focus device is being developed to this aim. The electron beam is driven through an electron pipe made of stainless steel to impinge on a 50 ?m brass foil, where conversion X-rays are generated. Electromagnetic forces in the ...
M. A. Saucedo-Espinosa , M. Rauch , B. H. Lapizco-Encinas ,
 Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, NY, USA
 Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, USA
Insulator-based dielectrophoresis (iDEP) employs arrays of electrically insulator posts in a microfluidic device to create dielectrophoretic forces that affect particle movement (Figure 1). The trapping performance of iDEP devices involves a careful balance between electrokinetics (EK) and dielectrophoresis (DEP), where EK is the superposition of electroosmosis (EO) and electrophoresis (EP). The ...
A. K. Palit ,
 ZF-Lemförder Electronic GmbH, ZF-Friedrichshafen AG. Group, Friedrichshafen, Germany
The design of a right contour/structure of the NFC-antenna is presented. The NFC-reader-antenna is applied later to communicate with the NFC-tag (transponder) of a smart phone placed in the phone box of the car. The NFC-reader-antenna with selected contour is printed directly on the PCB and the antenna-PCB is placed under the phone box at the center console. The designed antenna must fulfill ...
S. Soldatov , J. Meiser , B. Lepers , G. Link , J. Jelonnek ,
 Karlsruhe Institute of Technology (KIT, IHM), Karlsruhe, Germany
 Carl Meiser GmbH & Co. KG, Albstadt, Germany
 Karlsruhe Institute of Technology (KIT, IHM, IHE), Karlsruhe, Germany
The lamination of substrates with thin coatings is commonly used in furniture, automotive and avionic industries. In the lamination process the hot melt adhesives are widely used and typically activated at temperatures from 80°C to 140°C by resistive heating. This requires a heat transfer through the coating and/or the substrate. To make the process more flexible, to decrease its energy ...
G. Sun , C. De Blasiis , O. Sekula , P. Corsaro ,
 Brugg Kabel AG, Brugg, Switzerland
The loaded underground high voltage cable generates magnetic field with industrial frequency. Depending on the current rating and cable allocation, the magnetic exposure to public area may exceed the requested limit from customer. Extra shielding should then be applied. A primary FEM study shows that aluminum plate has a good shielding effect; the installation condition of the plate can however ...
B. A. Marmo , M. P. Snaith ,
 Xi Engineering Consultants, Edinburgh, United Kingdom
An electrostatic headphone includes many interrelated design elements that affect the frequency response of the headphone and the users listening experience. Xi Engineering Consultants (XI) partnered with Warwick Audio Technologies (WAT) to investigate the complex behavior of one-side electrostatic speakers. Xi developed a GUI that helped WAT engineers optimize their speaker using virtual tools ...
M. U. Hassan , R. Nilssen , A. Røkke ,
 Department of Electrical Power Engineering, NTNU, Trondheim, Norway
 Rolls Royce Marine AS, Trondheim, Norway
The use of Permanent Magnet Synchronous Machines (PMSM) as shaft generators is not new in marine vessels propulsion drive trains. Due to risk of fires in stator windings by internal faults, DNV GL requires the shaft generator to be electrically dead without losing propulsion. This requires a need of a novel design for on shaft generator with the capability of flux weakening. In this paper, a ...
D. Lahaye, D. Cvoric, S. de Haan, and J. Ferreira
Delft Institute of Applied Mathematics, Department of Electrical Engineering, Mathematics and Computer Sciences, TU Delft, The Netherlands
Electrical Power Processing Unit Department of Electrical Engineering, Mathematics and Computer Sciences, TU Delft, The Netherlands
Fault Current Limiters (FCLs) are expected to play an important role in the protection of future power systems due to the rising levels of the short-circuit currents. The inductive FCLs, comprising magnetic cores and one or more dc and ac windings, are particularly interesting because they inherently react on the fault. The so-called open-core FCL configuration employs only one magnetic core for ...
R. Wadhwa, G. Monkman, and T. Lien
NTNU Valgrinda, Inst. for produksjons- og kvalitetstek., Trondheim, Norway
FH Regensburg, Regensburg, Germany
Magnetic grippers are commonly used for workholding in handling and assembly of ferrous metalcasted parts. The workholding force produced by the magnetic gripper is strongly influenced by the texture and form of the workpiece in contact with its surface. This work explores the optimal design of an electromagnet to handle parts of varying profile radii by increasing the magnetic field ...