Temat: mechanika obliczeniowa - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Application of computational mechanics approaches for increasing of tribosystem operational parameters by using Plasma hardening method
Autorzy:: Kopylov, Viacheslav
Kuzin, Oleg
Kuzin, Nickolai
Powiązania:: https://bibliotekanauki.pl/articles/1839857.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: mathematical model
computational mechanics
contact problem
Optimization
model matematyczny
mechanika obliczeniowa
FEniCS
analiza elementów skończonych
optymalizacja
Opis:: On the basis of the mathematical model of the continual description of functionalgradient metal systems, taking into account their structure, a computational computer scheme has been developed that makes it possible to assess the stress-strain state of local volumes of parts taking into account their spatial inhomogeneity. With the use of modern software components of computational mechanics – FEniCS finite element analysis package and its implementation in Python, the optimal structural characteristics of wheelsets of railway locomotive tires after plasma treatment have been established. It is shown that, depending on the value of the load, hardening of products must be carried out to a depth of 4.5 mm; with a further increase in thickness, the parameters of operational strength do not change.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2021, 20, 1; 61-70
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:: Modeling of mechanical phenomena in the platinum-chromium coronary stents
Autorzy:: Idziak-Jabłońska, A.
Karczewska, K.
Kuberska, O.
Powiązania:: https://bibliotekanauki.pl/articles/122550.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: mathematics
computational mechanics
platinum-chromium stent
FEM
SolidWorks
stent wieńcowy
mechanika obliczeniowa
metoda elementów skończonych
analiza wytrzymałościowa
Opis:: This study discusses the geometrical model of a coronary stent with known design and strength analysis using the finite element method. The coronary stent model was made of platinum and chromium alloy. Static analysis based on compression of the coronary stent was also performed. The aim of the analysis was to examine the strength of the stent structure. The study analyzed stresses, plastic strains and displacements after applying a constant load to the stent walls. The mechanical phenomena such as percentage degree of shortening (foreshortening), relative narrowing and area of stent covering were also determined.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 4; 29-36
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:: Application of numerical methods for solving the non-Fourier equations. A review of our own and collaborators’ works
Autorzy:: Majchrzak, E.
Mochnacki, B.
Powiązania:: https://bibliotekanauki.pl/articles/122746.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: heat transfer
non-Fourier heat diffusion models
numerical methods
computational mechanics
proces termiczny
wymiana ciepła
metody numeryczne
mechanika obliczeniowa
model dyfuzji cieplnej
Opis:: Thermal processes occuring in the solid bodies are, as a rule, described by the well-known Fourier equation (or the system of these equations) supplemented by the appropriate boundary and initial conditions. Such a mathematical model is sufficiently exact to describe the heat transfer processes in the macro scale for the typical materials. It turned out that the energy equation based on the Fourier law has the limitations and it should not be used in the case of the microscale heat transfer and also in the case of materials with a special inner structure (e.g. biological tissue). The better approximation of the real thermal processes assure the modifications of the energy equation, in particular the models in which the so-called lag times are introduced. The article presented is devoted to the numerical aspects of solving these types of equations (in the scope of the microscale heat transfer). The results published by the other authors can be found in the references posted in the works cited below.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2018, 17, 2; 43-50
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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