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	Laser hardening variables prediction by mathematical model Kotlan, V. ; Karban, P. ; Doležel, Ivo ; Ulrych, B. The paper deals with modeling of the laser hardening with the aim to anticipate the process of hardening and estimate the properties of the hardened body without expensive experiments. Detailed record
	Active thermal insulation for induction heating of specific metal parts Ulrych, B. ; Kotlan, V. ; Doležel, Ivo The concept of active thermal insulation is explained and its application for induction heating of specific metal parts is analyzed. Its features ale illustrated by a typical example whose results are discussed. Detailed record
	Statické charakteristiky konstrukčních částí řiditelného termoelastického aktuátoru Doležel, Ivo ; Kotlan, V. ; Ulrych, B. The paper deals with one of the basic conditions of practical employment of finely controllable thermoelastic actuators – problems of the static characteristics of its individual structural parts. It contains the formulation of the principle of such thermoelastic actuators, description of its components (a dilatation element heated by induction, auxiliary electromagnetic actuators, and self-locking friction clutches) and their mathematical models. Briefly discussed are also their corresponding computer models making use of the finite element method. The crucial point of the work consists in the presentation of the results – static characteristics of the considered structural parts of the controlled thermoelastic actuators. Detailed record
	Indukční ohřev dlouhých hliníkových ingotů v homogenním magnetickém poli Donátová, M. ; Karban, P. ; Doležel, Ivo Induction heating of aluminum billets by their rotation in uniform magnetic field represents a modern technology whose purpose is to soften these workpieces before their hot forming. The paper presents a coupled integrodifferential model of the process that is used for the computation of a typical example. Detailed record
	Sdružené úlohy v silnoproudých aplikacích Doležel, Ivo ; Karban, P. ; Šolín, Pavel ; Ulrych, B. The paper presents several typical coupled problems in power engineering applications, show their mathematical and computer models, discuss the possibilities of their numerical solution and illustrate them on particular examples. Detailed record
	Zpracování informací získaných z termochromních kapalných krystalů Tesař, Václav ; Randa, Zdeněk Thermochromic liquid crystals respond to local changes of temperature by varying the colour of reflected light. Their use in experiments with anisothermal fluid flows seems to be simple - just taking pictures of the colours on the walls exposed to the fluid flow. However, practical extraction of quantitative informationfrom the pictures is not straightforward and brings a number of pitfalls. Unfortunately, these details are generally not found in available literature since most authors mention these practical procedure aspects very briefly, if at all. The present paper concentrates on these practical steps following them on a practicalexample of an investigation of an impinging jet, presenting the experience acquired in such investigations. Detailed record
	Numerické modelování zbytkového napětí v materiálu při laserovém svařování Chmelíčková, Hana ; Havelková, Martina ; Lapšanská, Hana Laser welding method is widely used in the industrial production, from micro welding of electronic parts to joining automobile and aeroplane parts. Distribution of temperature field in narrow heat affected zone and following mechanical deformation and residual stresses of part can be modelled by FDM numerical software SYSWELD. Detailed record
	Mathematical Modeling of Induction Heating of Thin Nonmagnetic Slabs by Means of Fredholm´s Integral Equation Doležel, Ivo ; Šolín, Pavel ; Škopek, M. ; Ulrych, B. The paper deals with the mathematical modeling of induction heating of thin nonmagnetic slabs in the transverse electromagnetic field. The model is given by Fredholm´s integral equation describing the distribution of the eddy current density within the slab and ... Detailed record
	Laser cladding with a numerical modelling of the temperature field in material utilization Stranyánek, Martin ; Chmelíčková, Hana Laser cladding is presented as a one of the technologies of laser material surface treatment. A series of speciments have been treated using CO.sub.2./sub. laser with a maximum output power of 2.5 kW by this technology. Some characteristics and properties such as shape or microhardness of clad layers were analysed. For numerical calculations of the laser induced temperature field in treated material was used the finite difference method. Detailed record
	Posuvný indukční ohřev a související jevy v kvazi-sdružené formulaci Karban, P. ; Ulrych, B. ; Doležel, Ivo The paper deals with quasi-coupled numerical solution of the problem of induction heating and associated phenomena in 2D axisymmetric arrangements. The process of heating is modeled by a special algorithm respecting the temperature dependencies of various material properties and (when necessary) time variable boundary conditions. The algorithm fully developed by the authors is illustrated on an example of continual induction hardening Detailed record

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