Temat: modelowanie równoległe - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Positioning accuracy analysis of the parallel mechanism near singular positions
Autorzy:: Bałchanowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/265691.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: clearances in the joint
parallel mechanism
singular positions
pojedyncze obiekty
mechanizmy równoległe
modelowanie numeryczne
Opis:: This paper presents a method of numerical modelling of parallel mechanisms with clearances in their kinematic pairs taken into account. The pairs with clearances are modelled as shape connections based on constraints in the form of contact interactions. Using the created models simulations were run to determine the positioning errors of the links in a parallel mechanism with three degrees of freedom (MR2120). In particular, the accuracy of positioning the links close to the mechanism singular configurations was studied.
Źródło:: International Journal of Applied Mechanics and Engineering; 2015, 20, 1; 5-18
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Using CUDA architecture for computer simulations of thermomechanical phenomena
Autorzy:: Michalski, G.
Sczygiol, N.
Leonov, S.
Powiązania:: https://bibliotekanauki.pl/articles/973633.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: numerical modeling
solidification
distributed and parallel processing
CUDA
modelowanie numeryczne
krzepnięcie
przetwarzanie rozproszone i równoległe
Opis:: This paper presents a simulation of the casting solidification process performed on graphics processors compatible with nVidia CUDA architecture. Indispensable for the parallel implementation of a computer simulation of the solidification process, it was necessary to modify the numerical model. The new approach shown in this paper allows the process of matrix building to be divided into two independent phases. The first is independent from the nodal temperature values computed in successive time-steps. The second is performed on the basis of nodal temperature values, but does not require a description of the finite element mesh. This phase is performed in each time step of the simulation of the casting solidification process. The separation of these two phases permits an effective implementation of the simulation software of the casting solidification process on the nVidia CUDA architecture or any other multi-/manycore architecture. The use of GPUs nVidia for the implementation of a computer simulation of the solidification process significantly reduced the waiting time for results. In the course of computer simulations important speedup of the computations was observed.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2014, 13, 3; 167-174
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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