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Wyszukujesz frazę "Digital Image Correlation" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Numerical simulation of shear slitting process of grain oriented silicon steel using sph method
Autorzy:
Bohdal, Ł.
Tandecka, K.
Kałduński, P.
Powiązania:
https://bibliotekanauki.pl/articles/387439.pdf
Data publikacji:
2017
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
shear slitting
smoothed particle hydrodynamics
grain oriented silicon steel
digital image correlation
Opis:
Mechanical cutting allows separating of sheet material at low cost and therefore remains the most popular way to produce laminations for electrical machines and transformers. However, recent investigations revealed the deteriorating effect of cutting on the magnetic properties of the material close to the cut edge. The deformations generate elastic stresses in zones adjacent to the area of plastically deformed and strongly affect the magnetic properties. The knowledge about residual stresses is necessary in designing the process. This paper presents the new apprach of modeling residual stresses induced in shear slitting of grain oriented electrical steel using mesh-free method. The applications of SPH (Smoothed Particle Hydrodynamics) methodology to the simulation and analysis of 3D shear slitting process is presented. In experimental studies, an advanced vision-based technology based on digital image correlation (DIC) for monitoring the cutting process is used.
Źródło:
Acta Mechanica et Automatica; 2017, 11, 4; 333-338
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Digital image correlation technique as a tool for kinematics assessment of structural components
Autorzy:
Brodecki, A.
Szymczak, T.
Kowalewski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/970572.pdf
Data publikacji:
2018
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
digital image correlation system
cyclic loading
PONTOS
motion
displacement
3D coordinate system
Opis:
The paper reports the results of tests carried out for kinematic properties determination of components under cyclic loading. DIC system called 5M PONTOS was employed to follow variations of displacement versus time. It was conducted by the use of markers stuck on selected sections of components tested. The results are presented in 2D and 3D coordinate systems expressing behaviour of such elements as: mechanical coupling device, boat frame and car engine. These data enabled to capture weak and strong sections of the component examined at various loading conditions.
Źródło:
Acta Mechanica et Automatica; 2018, 12, 2; 101-104
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of a SPH coupled FEM method for simulation of trimming of aluminum autobody sheet
Autorzy:
Bohdal, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/387043.pdf
Data publikacji:
2016
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
trimming
smoothed particle hydrodynamics
digital image correlation
SPH
metoda elementów skończonych
blacha aluminiowa
przycinanie
Opis:
In this paper, the applications of mesh-free SPH (Smoothed Particle Hydrodynamics) continuum method to the simulation and analysis of trimming process is presented. In dealing with shearing simulations for example of blanking, piercing or slitting, existing literatures apply finite element method (FEM) to analysis of this processes. Presented in this work approach and its application to trimming of aluminum autobody sheet allows for a complex analysis of physical phenomena occurring during the process without significant deterioration in the quality of the finite element mesh during large deformation. This allows for accurate representation of the loss of cohesion of the material under the influence of cutting tools. An analysis of state of stress, strain and fracture mechanisms of the material is presented. In experimental studies, an advanced vision-based technology based on digital image correlation (DIC) for monitoring the cutting process is used.
Źródło:
Acta Mechanica et Automatica; 2016, 10, 1; 56-61
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of different random pattern creation forms on the results of experimental modal analysis performed by high-speed digital image correlation
Autorzy:
Hagra, M.
Schrötter, M.
Lengvarsky, P.
Powiązania:
https://bibliotekanauki.pl/articles/970570.pdf
Data publikacji:
2014
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
digital image correlation
experimental modal analysis
random pattern
Modan3D
korelacja obrazu cyfrowego
eksperymentalna analiza modalna
Opis:
In this contribution an influence of random contrast patterns creation on the quality of the obtained results of experimental modal analysis performed by high-speed digital image correlation is described. Three common forms of random pattern creation were investigat-ed. While the first form was presented by the black speckles printed on white matt vinyl foil and bonded on the sample surface, in the sec-ond and the third case, respectively, the black speckles were sprayed on white sprayed sample surface or on paint white one. For the pur-poses of modal parameters estimation in the form of natural frequencies, mode shapes and damping ratios the program called Modan3D, developed in the authors department, was used. The results obtained by Modan3D were compared with the results achieved by system Pulse specialized for vibration analysis.
Źródło:
Acta Mechanica et Automatica; 2014, 8, 1; 22-26
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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