National Repository of Grey Literature 5 records found  Search took 0.01 seconds. 
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.
Solution of Nonstacionary Thermoelasticity Problems
Kohut, Roman
The paper deals with a finite element solution of transient thermoelasticity problems. For each time step the system of linear algebraic equations is solved using the conjugate gradient method preconditioned by incomplete factorization of the matrix derived from the original matrix. The time step is chosen adaptively. The results of numerical tests are presented.
Numerical Analysis of Induction Heating-Based Assembly and Disassembly of Shrink Fits
Shulzhenko, M. ; Gontarowskiy, P. ; Matyukhin, Y. ; Pantelyat, M. ; Doležel, Ivo ; Ulrych, B.
The paper deals with mathematical modelling of assembly and disassembly of structural parts that are coupled with interference fit by means of induction heating. The process is formulated as a quasi-coupled electromagnetic-thermoelastic problem in 2D arrangement.Its solution is based on time stepping with built-in internal iterative processes for improvement of accuracy of parameters of linearised equations describing all three involved fields that are in each time step solved by the finite element techniques.

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