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Rotational Induction Heating Device with External Rotor
Musálek, Lubomír
A novel way of induction heating of nonmagnetic cylindrical billets is proposed and modeled. The system works with unmoving charge and rotating magnetic field produced by permanent magnets mounted along the internal perimeter of the rotor. The model is solved numerically by own code Agros2d based on the finite element method of higher order of accuracy.
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Hard-coupled model of local direct resistance heating of thin sheets
Karban, P. ; Mach, F. ; Doležel, Ivo
A monolithic model of local direct resistance heating of thin sheets is presented. The model respects all nonlinearities of the system such as the temperature dependencies of physical properties of individual parts of the system. Numerical computations are performed by a finite element method of higher order of accuracy and realized by our own codes Hermes2D and Agros2D. The methodology is illustrated by a typical example whose results are discussed.
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Aktuátor založený na principu termoelasticity pro vytváření extrémních sil
Doležel, Ivo ; Donátová, M. ; Karban, P. ; Ulrych, B.
Actuators working on the principle of thermoelasticity represent promising devices for fixing tasks in the industrial environment. The paper deals with the computer simulation of their operations both in the dynamic regimes. The task represents a multiply coupled problem characterized by interaction of electromagnetic field, temperature field and a field of thermoelastic displacements. The corresponding mathematical model is solved in hard-coupled formulation. The methodology is illustrated on a typical example.
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Polařský a obvodový model dávkovače zinku
Musil, Ladislav ; Praglowska-Gorczynska, Z.
Electromagnetic feeders of molten metals are used in some industrial technologies, particularly for accurate dosing. Mathematical model of such devices represents a complicated coupled task characterised by interaction of electromagnetic, temperature and flow fields. The paper deals with numerical computation of several important quantities of the device providing its circuit parameters
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