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Multiphysik-Modellierung und -Simulation treiben Innovationen in Industrie und Wissenschaft voran – wie die zahlreichen Anwendungsbeispiele zeigen, die jedes Jahr in den Fachbeiträgen und Postern von Ingenieuren, Forschern und Wissenschaftlern auf der COMSOL Conference vorgestellt werden. Lassen Sie sich von den unten aufgeführten aktuellen Beiträgen inspirieren oder nutzen Sie die Schnellsuche, um eine bestimmte Präsentation zu finden oder nach Anwendungsbereich oder Konferenzjahr/-ort zu filtern.

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Suchbegriff:

Full Simulative Approach to Orbital Angular Momentum (OAM) Transmissions between Antenna Arrays

R. Gaffoglio [1], A. Cagliero [1], A. De Vita [2], B. Sacco [2],
[1] Department of Physics, University of Torino, Torino, Italy
[2] Centre for Research and Technological Innovation, RAI Radiotelevisione Italiana, Torino, Italy

The possibility of exploiting the Orbital Angular Momentum (OAM) of light as a means to simultaneously transmit radio signals at the same frequency led us to the experimental implementation of an OAM-based multiplexing scheme between antenna arrays. Within this framework, the realization ... Mehr lesen

Prediction of the Loudspeaker Total Harmonics Distortion Using COMSOL Multiphysics® Software

F. Malbos [1], M. Bogdanski [2], M. Strauss [2],
[1] Harman, Paris, France
[2] Harman Becker Automotive Systems, Straubing, Germany

For automotive applications, simulation methods are used to get the best audio acoustic performance. Because a loudspeaker is a non linear device, the sound pressure in the vehicle includes harmonics which are mainly created by the force factor, suspension stiffness and voice coil ... Mehr lesen

Analysis of an Inductive Proximity Sensor

A. Frey [1], I. Kuehne [2], R. Großmann [1], T. Frommelt [1], L. Fromme [3], T. Koch [4],
[1] Augsburg University of Applied Sciences, Augsburg, Bavaria, Germany
[2] Heilbronn University, Heilbronn, Germany
[3] Bielefeld University of Applied Sciences, Bielefeld, Germany
[4] COMSOL Multiphysics GmbH, Göttingen, Germany

Today, 90 percent of automation sensors are binary proximity detectors. Besides capacitive and optical types, inductive proximity sensors are essential for industrial applications. Compared to their mechanical counterparts, they offer almost ideal properties as contact-free and wear-free ... Mehr lesen

Model of Selective Field Deformation in Deep Brain Stimulation (DBS)

L. Roohisefat [1], S. Mottaghi [2], M. Li [3], U. G. Hofmann [4], V. A. Coenen [5],
[1] Department of Stereotactic and Functional Neurosurgery, Medical Faculty, Freiburg University. Department of Neurosurgery, Section for Neuroelectronic Systems, Medical Center, Freiburg University, Freiburg, Germany
[2] Department of Neurosurgery, Section for Neuroelectronic Systems, Medical Center, Freiburg University, Freiburg, Germany
[3] Department of Stereotactic and Functional Neurosurgery, Medical Faculty, Freiburg University, Freiburg, Germany
[4] Department of Neurosurgery, Section for Neuroelectronic Systems, Medical Center, Freiburg University. Cluster of Excellence „BrainLinks-BrainTools“,DFG EXC 1086, Freiburg, Germany
[5] Department of Stereotactic and Functional Neurosurgery, Medical Faculty, Freiburg University. Cluster of Excellence „BrainLinks-BrainTools“,DFG EXC 1086, Freiburg, Germany

Deep Brain Stimulation (DBS) is known to alleviate symptoms of some movement disorders and is currently tested for its clinical value in several psychiatric disorders. Although the exact mechanism of DBS is not well understood yet, an activation of white matter structures is the most ... Mehr lesen

3D-FEM Simulation of a Transverse Flux Machine Respecting Nonlinear and Anisotropic Materials

S. Müller [1], M. Keller [1], A. Echle [1], A. Enssle [1], P. Präg [1], A. Lusiewicz [1], D. Maier [1], N. Parspour [1],
[1] Institute of Eletrical Energy Conversion, University of Stuttgart, Stuttgart, Germany

The paper presents the three dimensional (3D) Finite Element Method (FEM) COMSOL Multiphysics® model of a Three Phase Permanent Magnetic Excited Transverse Flux Machine (TFM). The model is fully parameterized and able to sweep over all parameters during design optimization process. The ... Mehr lesen

Enhancing Fluorescence of Diamond Color Centers near Gold Nanorods via Geometry Optimization

M. Csete [1], A. Szenes [1], L. Zs. Szabó [1], G. Szabó [1], T. Csendes [2], B. Bánhelyi [2],
[1] Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
[2] Institute of Informatics, University of Szeged, Szeged, Hungary

Detecting light emitted by fluorescent molecules with resolution down to single photon is an important problem in various fields of sciences and applications, such as solid-state physics, quantum information processing and medicine. The detection probability can be improved via ... Mehr lesen

Secondary Electron Trajectories in Scanning Tunneling Microscopy

H. Cabrera [1], D. A. Zanin [1], L. G. De Pietro [1], A. Vindigni [1], U. Ramsperger [1], D. Pescia [1],
[1] Laboratory for Solid State Physics, Microstructure Research, ETH Zurich, Zurich, Switzerland

The recently developed technique Scanning Tunneling Microscopy in the Field Emission regime (STM FE) is based on the Russell Young's topografiner technology. The set-up is a no contacting device consisting of a sharp tip approached vertically to a conducting surface at variable distances ... Mehr lesen

Model of Microwave-Assisted Thermal Adhesion of Synthetic Leather to a Plastic Substrate

S. Soldatov [1], J. Meiser [2], B. Lepers [1], G. Link [1], J. Jelonnek [3],
[1] Karlsruhe Institute of Technology (KIT, IHM), Karlsruhe, Germany
[2] Carl Meiser GmbH & Co. KG, Albstadt, Germany
[3] 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 ... Mehr lesen

3D Modeling of Planar Discharge of a CO2 Laser

J. Schüttler [1],
[1] Rofin-Sinar Laser GmbH, Hamburg, Germany

High power CO2 lasers have been the workhorses for sheet metal cutting, welding and many more applications in materials processing during the past decades. Even though a significant replacement by fiber coupled lasers takes place, there are still many applications that benefit from the ... Mehr lesen

Predicting Degradation of a Composite Material Due to an Injected Current

J. Rivenc [1],
[1] Airbus Group Innovations, Toulouse Cedex, France

The purpose of this study is to predict, with a multiphysics model, the degradation area of a composite material when a current is injected into the material. The main physical phenomenon is an exothermic reaction, with an irreversible nonlinear variation of the electrical conductivity. ... Mehr lesen

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