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AC/DC Module

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Multiphysics Electrifies Modeling in Many ScalesMultiphysics Electrifies Modeling in Many Scales

The Saab Group, Linköping, Sweden
Flexibility was required by the Saab Group who wanted to simulate the striking of airplane wings by lightning, as well as how much the shielding material...

COMSOL Helps Commercialize Molding TechnologyCOMSOL Helps Commercialize Molding Technology

RocTool, Le Bourget du Lac, France
Mathematical modeling is going far beyond the R&D lab and is starting to make a real difference in manufacturing processes. Today it would be virtually...

Melt it in Mid-airMelt it in Mid-air

EPM-Madylam Laboratory, Grenoble, France
Dr. Ernst develops cold crucibles that melt incredibly hot metals and other materials without letting the melt touch the container walls. With these methods...

A New Approach to Railgun OperationA New Approach to Railgun Operation

Benet Laboratories, US Army Research Engineering and Development Command, Watervliet, NY
Railguns-which propel a projectile using electromagnetic forces´ promise to revolutionize projectile launchers. To adequately design them, researchers must...

Electrical Imaging SystemsElectrical Imaging Systems

Riboug Research Centre, Schlumberger, France
Drilling an oil well requires a good knowledge of the subsoil. Electrical imaging provides a fuzzy picture of underground structures, which needs to be...

Example Models

A Tunable MEMS CapacitorA Tunable MEMS Capacitor

In an electrostatically tunable parallel plate capacitor, the distance between the two plates can be modified, as the applied voltage changes. The distance between the plates are tuned via a spring, to which one of the plates is attached....

Cold CrucibleCold Crucible

A cold crucible is used for the manufacturing of alloys that require a high degree of purity, like titanium alloys for the aeronautic industry. The cold crucible in this model is made of several water-cooled copper sectors that form the...

Simulating a Generator in 3DSimulating a Generator in 3D

The generator analyzed in this model consists of a rotor with permanent magnets and a nonlinear magnetic material inside a stator of the same magnetic material. The model calculates the static magnetic fields inside and around the...

Bond Wires to a ChipBond Wires to a Chip

Bonding wires connect an integrated circuit to the pins of the package that holds it. These wires introduce relatively large inductances that can introduce crosstalk and distort the signals. This model calculates the lumped parameters...

Inductance of a Power InductorInductance of a Power Inductor

Power inductors are a central part of many low-frequency power applications. They are, for example, used in the switched power supply for the motherboard and all other components in a computer. There are only crude analytical formulas...

Magnetic Prospecting of Iron Ore DepositsMagnetic Prospecting of Iron Ore Deposits

Magnetic prospecting is a method of geological exploration applicable to certain types of iron ore deposits, in particular those made up of magnetite and hematite. Estimating center-of-mass coordinates and the spatial extent of iron-rich...

Planar Transformer on a PCBPlanar Transformer on a PCB

A planar transformer is a transformer that is integrated onto a printed circuit board (PCB). They can either be manufactured as standalone devices, or integrated into the PCB of a module. The planar structure improves the cooling...