Temat: plates - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Simplified approach of free vibration analysis of plates supported in vicinity of the corners by BEM
Autorzy:: Guminiak, M.
Powiązania:: https://bibliotekanauki.pl/articles/122589.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: free vibration
Kirchhoff plates
boundary element method
linear theory
thin plates
drgania swobodne
metoda elementów brzegowych
teoria liniowa
Opis:: Free vibration analysis of Kirchhoff plate by the Boundary Element Method is presented in the paper. The boundary integral equation are derived according to the Bettie theorem. The collocation version of BEM with non-singular approach with one and double collocation points is used. The constant type of element is introduced. Boundary suport at selected point is modelled as support in vicinity of point along single boundary element.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2013, 12, 1; 45-54
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 hybrid method of finding the natural frequency spectrum for quasi-fractal plate bands
Autorzy:: Wirowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/122405.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: composite plate
quasi-fractal plates
tolerance averaging technique
hybrid methods
vibrations
Opis:: The work deals with the issues of modelling of multiscale composites. A group of composite structures with a quasi-fractal geometry has been defined. In order to model their dynamic properties, a simple engineering method has been proposed. It takes into account not only the parameters and proportions of the components of the composite, but also their mutual arrangement. The proposed method is demonstrated on several examples and its accuracy has been compared with the finite element method and the homogenization method.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2015, 14, 4; 153-165
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: An initial stability of plates in various conservative load conditions by the Boundary Element Method
Autorzy:: Guminiak, M.
Powiązania:: https://bibliotekanauki.pl/articles/122698.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: initial stability of plates
boundary element method
fundamental solutions
metoda elementów brzegowych
rozwiązania podstawowe
Opis:: An initial stability of Kirchhoff plates by the Boundary Element Method (BEM) is presented in the paper. A plate is subjected by external in-plane normal and tangential conservative loadings acting in two perpendicular directions. The Betti’s theorem is used to derive the boundary-domain integral equations. The direct version of the Boundary Element Method is presented with combination to simplified boundary conditions. The singular and non-singular approach of the boundary integrals derivation is used.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2015, 14, 3; 25-36
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Static analysis of circular and elliptic plates resting on internal flexible supports by the Boundary Element Method
Autorzy:: Guminiak, M.
Szajek, K.
Powiązania:: https://bibliotekanauki.pl/articles/122852.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: internally supported plates
boundary element method
fundamental solutions
curvilinear elements
metoda elementów brzegowych
rozwiązania podstawowe
elementy krzywoliniowe
Opis:: A static analysis of circular and elliptic Kirchhoff plates resting on internal elastic supports by the Boundary Element Method is presented in the paper. Elastic support has the character of Winkler-type elastic foundations. Bilateral and unilateral internal constraints are taken into consideration. The Betti’s theorem is used to derive the boundary domain integral equation. The direct version of the boundary element method is presented and simplified boundary conditions, including curvilinear boundary elements, are introduced. The collocation version of boundary element method with non-singular approach is presented.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2014, 13, 2; 21-32
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Heat transfer analysis of non-Newtonian natural convective fluid flow using Homotopy Perturbation and Daftardar-Gejiji & Jafari Methods
Autorzy:: Adeleye, Olurotimi
Yinusa, Ahmed
Powiązania:: https://bibliotekanauki.pl/articles/122431.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: non-Newtonian fluid
natural convection
vertically infinite plates
Daftardar-Gejiji & Jafari Method
DJM
Homotopy Perturbation Method
HPM
ciecz nieniutonowska
konwekcja naturalna
metoda Daftardar-Gejiji i Jafari
metoda perturbacji homotopii
Opis:: In this paper, the analytical solution of natural convective heat transfer of a non-Newtonian fluid flow between two vertical infinite plates using the Homotopy Perturbation Method (HPM) and Daftardar-Gejiji & Jafari Method (DJM) is presented. The heat transfer problem of natural convection is observed in many engineering fields including geothermal systems, heat exchangers, petroleum reservoirs, nuclear waste reserves, etc. The problem which is modelled as fully coupled nonlinear ordinary differential equations requires special analytical techniques for its solution. The solutions are obtained using an exact analytical method: the Homotopy Perturbation Method (HPM) and a semi-analytical method: the Daftardar-Gejiji & Jafari Method (DJM). These solutions are compared with solutions obtained from the Runge-Kutta numerical method. The results are in good agreement with the numerical solutions. The effects of the Eckert number, Prandtl number and the non-Newtonian fluid viscosity parameter on the non-dimensional temperature and velocity of the fluid are investigated. The results obtained from the analytical method show that the method can be applied to predict excellent results of the problem and can be used for parametric studies of the problem. From the results, it is shown that when the Prandtl number and the Eckert number are increased, there is an increase in both temperature and fluid flow velocity.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2019, 18, 2; 5-18
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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