Autor: Kwiatoń, P. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mathematical modeling of mechanical phenomena in the gantry crane beam
Autorzy:: Sowa, L.
Kwiatoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/122642.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: mathematical modelling
stress analysis
numerical simulation
FEM
modelowanie matematyczne
analiza naprężeń
symulacj numeryczna
wytrzymałość materiałów
suwnice bramowe
metoda elementów skończonych
Opis:: This work concerns the numerical analysis of the gantry crane beam in the context of the safety of the structure. The mathematical model and numerical simulations of mechanical phenomena in the gantry crane beam are presented in this paper. The analysed gantry crane beam has a T-section. As a result of the computations carried out, the stresses and displacements of the gantry structure were obtained. The influence of the value and loading force position on the equivalent stress in the gantry crane beam was evaluated. It was sought that the maximum value of Huber-Mises-Hencky stress induced in the beam was less than the strength of material, so the design is safe.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 3; 97-104
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Influence of Riser Shape on Feeding Effectiveness of Solidifying Casting
Autorzy:: Sowa, L.
Skrzypczak, T.
Kwiatoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/383146.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: solidification process
castings defects
numerical simulation
liquid metal flow
proces krzepnięcia
wady odlewów
symulacja numeryczna
przepływ ciekłego metalu
Opis:: The mathematical model and numerical simulations of the solidification of a cylindrical shaped casting, which take into account the process of filling the mould cavity by liquid metal and feeding the casting through the riser during its solidification, are presented in the paper. Mutual dependence of thermal and flow phenomena were taken into account because have an essential influence on solidification process. The effect of the riser shape on the effectiveness of feeding of the solidifying casting was determined. In order to obtain the casting without shrinkage defects, an appropriate selection of riser shape was made, which is important for foundry practice. Numerical calculations of the solidification process of system consisting of the casting and the conical or cylindrical riser were carried out. The velocity fields have been obtained from the solution of momentum equations and continuity equation, while temperature fields from solving the equation of heat conductivity containing the convection term. Changes in thermo-physical parameters as a function of temperature were considered. The finite element method (FEM) was used to solve the problem.
Źródło:: Archives of Foundry Engineering; 2019, 4; 91-94
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Analysis of Temperature and Velocity Fields During Filling of Continuous Casting Mould
Autorzy:: Sowa, L.
Skrzypczak, T.
Kwiatoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/379679.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: solidification process
continuous casting
numerical simulation
molten metal flow
krzepnięcie
odlewanie
symulacja numeryczna
Opis:: In this paper, the mathematical model and numerical simulations of the molten steel flow by the submerged entry nozzle and the filling process of the continuous casting mould cavity are presented. In the mathematical model, the temperature fields were obtained by solving the energy equation, while the velocity fields were calculated by solving the momentum equations and the continuity equation. These equations contain the turbulent viscosity which is found by solving two additional transport equations for the turbulent kinetic energy and its rate of dissipation. In the numerical simulations, coupling of the thermal and fluid flow phenomena by changes in the thermophysical parameters of alloy depending on the temperature has been taken into consideration. This problem (2D) was solved by using the finite element method. Numerical simulations of filling the continuous casting mould cavity were performed for two variants of liquid metal pouring. The effect of the cases of pouring the continuous casting mould on the velocity fields and the solid phase growth kinetics in the process of filling the continuous casting mould was evaluated as these magnitudes have an influence on the high quality of the continuous cast steel slab.
Źródło:: Archives of Foundry Engineering; 2018, 18, 1; 115-118
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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