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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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MOSFET Channel Engineering and Scaling study with Halo Implants using COMSOL Multiphysics nouveau

K. Sethia¹, D. Fixel¹
¹Trinity College, Hartford, Connecticut, USA

Abstract for COMSOL Conference With the world continuously scaling MOSFETs into smaller submicron dimensions, subthreshold current and threshold voltage control are important challenges to ensure optimal device performance. This study explores the effects of halo implants on simulated ... En savoir plus

Voltage Distribution in Metalized Film Cylindrical Capacitors nouveau

Alex Pokryvailo¹
¹Spellman High Voltage Electronics Corp.

We narrow the consideration to HV cylindrical parts, typically with axial leads located on the opposite sides. They are tens of millimeters long, so at moderate frequencies of up to 10MHz they may be analyzed as lumped elements (not as transmission lines), although in some cases they may ... En savoir plus

Electromagnetic Contact Force and Mechanical Deformation due to Various Force Calculating Methods

J.-H. Choi, C. Kwak, S.-H. Lee [1]
[1] Department of Electrical Engineering, Kyungpook National University, Daegu, Korea

Electromagnetic force and density in the electric-machinery dynamic system are fundamental forces which cause physical phenomena such as structural deformation, vibration, noise etc. But when two materials are contacted, electromagnetic contact force and distribution by conventional ... En savoir plus

Simulation of an Electromagnetic Sheet Shearing System

Y. Huang [1], X. Li [1], Q. Xiong [1], Z. Lai [1], Q. Cao [1], L. Li [1],
[1] Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, Hubei, China

Electromagnetic shearing (EMS) is a high speed sheet metal shearing system where the workpiece is fractured under a pulsed electromagnetic force. It can be regarded as an extension of electromagnetic forming[1-2]. The basic shearing principle is that a huge repulsive electromagnetic ... En savoir plus

Electromagnetic and Electrostatic study in High Voltage Switchyard

R. Devanathan [1], B.Mutum [1], L.Obiroy [2], C Manivannan [3], R Malarvizhi [3],
[1] Hindustan University, Rajiv Gandhi Salai, Padur (via), Kelambakkam, Chennai, India
[2] Hindustan University, Rajiv Gandhi Salai, Padur (via), Kelambakkam, Chennai, India
[3] L & T Constructions, Power Transmission & Distribution, Chennai, India

The paper reports on an electromagnetic field study of a 765 kV switchyard. The study is performed using COMSOL Multiphysics® software. The study involves geometric modelling, finite element analysis, and numerical solution of the linearized equations. For the system studied, it was ... En savoir plus

Electromagnetic Wave Guidance Mechanisms in Photonic Crystal Fibers

S. K. Bhadra [1], T. Biswas [1], S. Majumder [1],
[1]CSIR-Central Glass and Ceramic Research Institute, Jadavpur, Kolkata, India

We present the utilization RF module of COMSOL Multiphysics® for understanding three different types of wave guidance mechanisms in photonic crystal fibers (PCFs), like modified total internal reflection, Bragg’s reflection and resonant trapping of defect mode at Dirac frequency. ... En savoir plus

Numerical Evidence of Unrest-Related Electromagnetic Effects in the Campi Flegrei Caldera, Italy

G. Perillo [1], G. De Natale [2], M. G. Di Giuseppe [2], A. Troiano [2], C. Troise [2],
[1] University of Naples Parthenope, Naples, Italy
[2] INGV – Osservatorio Vesuviano, Naples, Italy

Electric, magnetic and electromagnetic (em) methods are widely used to monitor active volcanoes. A review of such applications is presented in Johnston (cit). Em signals were recorded in correspondence of numerous volcanic eruptions, for example in the case of the Mt. Unzen in Giapppone, ... En savoir plus

Electromagnetic Processing from AC to DC Field and Multiphysics Modeling: a Way for Process Innovation

M. Dumont [1], R. Ernst [2], Y. Fautrelle [2], J. Etay [2]
[1] Emdpi Solutions-JAM, France
[2] Simap, France

Examples of Electromagnetic processes are presented: (1) cold crucible, (2) electromagnetic pump, (3) DC electromagnetic brake. A combined approach by using multiphysics modeling with Comsol and experimental validation is used in order to give some guidelines for process improvement and ... En savoir plus

FEM Modeling in Robust Design for Graphene-Based Electromagnetic Shielding

S. Elia [1], G. Granata [1], P. Lamberti [1], V. Tucci [1],
[1] University Of Salerno, Italy

Electromagnetic shielding design is usually approached referring to nominal values of the main parameters. This could lead to malfunctioning devices and its performance differ widely from what was really aimed at or, worse, the final design product could even be physically unrealizable. ... En savoir plus

Simulation of the Earth's Electromagnetic Clearance System (DEMETER)

J. P. Pothin [1], N. Gosselin [1],
[1] Nexter Systems, France

DEMETER is a magnetic field replicator. This system is designed to deceive anti tank mines. Numerical simulation (using COMSOL Multiphysics® software) allows to indicate DEMETER's performance in various environment and various configurations. The study of the magnetic field provide also ... En savoir plus

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