Temat: FEM numerical analysis - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Strength Analysis of the MSBS-5.56B Rifle Handguard Assembly Loaded with an Under-Barrel Grenade Launcher
Analiza wytrzymałościowa zespołu łoża karabinka MSBS-5,56B obciążonego granatnikiem podwieszanym
Autorzy:: Grązka, Michał
Woźniak, Ryszard
Zahor, Mirosław
Powiązania:: https://bibliotekanauki.pl/articles/2036924.pdf
Data publikacji:: 2021
Wydawca:: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:: structural mechanics
FEM numerical analysis
armament
mechanika konstrukcji
analiza numeryczna MES
uzbrojenie
Opis:: This paper presents the results of FEM (finite element method) numerical testing of the handguard of the MSBS-5.56B 5.56 mm calibre rifle complete with a 40 mm calibre under-barrel grenade launcher. The FEM calculations and the analysis of the calculations were intended to provide verification of the strength of the handguard subjected to the forces generated by the interaction with the grenade launcher during the launch of a grenade round. The results of the tests allowed the designers and process engineers to design the optimal shape of a handguard that will guarantee its safety during the operation of the rifle with the under-barrel grenade launcher.
Artykuł przedstawia wyniki badań numerycznych zespołu łoża 5,56 mm karabinka MSBS-5,56B zawierającego granatnik podwieszany kalibru 40 mm przeprowadzonych z wykorzystaniem metody elementów skończonych. Przeprowadzone obliczenia, a następnie analiza uzyskanych wyników miały na celu sprawdzenie wytrzymałości łoża, poddanego działaniu sił powstałych wskutek współpracy z granatnikiem podczas strzału. Wyniki badań pozwoliły konstruktorom i technologom zaprojektowanie optymalnego kształtu łoża, które będzie gwarantowało jego bezpieczeństwo podczas eksploatacji karabinka i granatnika.
Źródło:: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2021, 12, 3 (45); 111-122
2081-5891
Pojawia się w:: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of a deep excavation in diaphragm walls, on surrounding buildings
Analiza wpływu głębokiego wykopu na istniejące zabudowania – analiza numeryczna MES
Autorzy:: Just, M.
Powiązania:: https://bibliotekanauki.pl/articles/383502.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: analiza numeryczna MES
metoda elementów skończonych
głębokie wykopy
ściany szczelinowe
urbanizacja
FEM numerical analysis
finite element method
deep excavation
diaphragm walls
urbanization
Opis:: Niniejszy artykuł przedstawia zagadnienia teoretyczne związane z wygradzaniem głębokich wykopów w technologii ścian szczelinowych, porusza praktyczne aspekty ich przy użyciu metody elementów skończonych w programie Midas GTS NX. Pierwsza część artykułu przybliża rys historyczny jak również metodologię, wykonywania wykopu wygrodzonego ścianami szczelinowymi. W dalszej części zostają omówione istniejące warunki gruntowe oraz przyjęte założenia projektowe. Artykuł zwieńcza przedstawienie wyników analizy wpływu wykonania głębokiego wykopu wygrodzonego ścianami szczelinowymi na teren znajdujący się w ściśle zurbanizowanym centrum miasta oraz wpływ jaki wywarł on na otaczające budynki.
The article presents the results of deep excavation analysis performed using the finite element method as well as impact of diaphragm walls construction on the surrounding objects. First part of the article concerns on theoretical background, methodology and data used in program. The second part is focused on the design model, results of analysis and impact of the deep excavation on surrounding buildings. The design task was performed in Midas GTS NX software, which is modeling platform used to design ground conditions as well as structures cooperating with the soil. Presented content is part of Author’s master thesis.
Źródło:: Archiwum Instytutu Inżynierii Lądowej; 2018, 27; 85-104
1897-4007
Pojawia się w:: Archiwum Instytutu Inżynierii Lądowej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical analysis of the stress and displacement level caused by axial load P=15000 N in a car scissor jack BD-02B2
Autorzy:: Różyło, P.
Wysmulski, P
Powiązania:: https://bibliotekanauki.pl/articles/117713.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: FEM
numerical analysis
scissor jack
Opis:: The paper presents a numerical analysis of the stress levels occurring in the scissor jack BD-02B2. Model of scissor jack was prepared in an environ-ment Catia V5R20. A simplified geometry for numerical calculation imported into the program Abaqus 6.10, in which the analysis was performed. FEM analysis was performed for the case when the scissor jack was at maximum lift height. Level occurring stress were compared with respect to the yield strength and tensile strength. The study also shows the level of displacements occurring under maximum load of the system. The results of numerical calculations have provided the necessary information concerning the degree of effort of mechanism. With the FEM analysis it was possible to determine the critical zones in the scissor jack.
Źródło:: Applied Computer Science; 2015, 11, 1; 31-38
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Comparison of numerical and experimental analysis of the crack propagation process
Autorzy:: Różyło, P.
Wójcik, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/117940.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: FEM
numerical analysis
crack propagation
Abaqus
ABS
Opis:: Nowadays numerical methods are a powerful tool to simulate real processes. Polymer materials are increasingly used in engineering solutions. ABS is a common material used interchangeably with respect to traditional materials. Process for the production of components for rese-arch on 3D printers is becoming more widespread and accessible to ordi-nary users. Crack propagation process was carried out at the same time to compare results through experiments performed on the testing machine and numerical study. Cracking process was carried out by finite element method, implemented on the basis of simulations xFEM. This method allows to conduct research related to the separation of the material nodes, in places of highest stress levels that exceed the limits of plasticity and strength of the material. The analysis involved comparison of the shape of the resulting cracks through experimental and numerical way.
Źródło:: Applied Computer Science; 2015, 11, 2; 60-67
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Numerical analysis of a shaped rail pad under selected static load
Autorzy:: Szurgott, P.
Gotowicki, P.
Niezgoda, T.
Powiązania:: https://bibliotekanauki.pl/articles/248000.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: numerical analysis
FEM
rail pad
hyperelastic material
fastening
Opis:: Numerical analysis of selected type of the polyurethane rail pad is presented in the paper. A shaped pad with cylindrical-shaped elements in its working section was selected as a representative for the computational simulation. Analysis reflected the experimental test according to the valid standard. The test included loading of the vertical force perpendicular to the foot of the rail. Such test allows determining the static stiffness of the pad. The Mooney - Rivlin material model was selected in the current study. Necessary experimental tests including a uniaxial compression and tension were conducted to provide material constants for the hyperelastic material model applied for the FE model. Simplified FE models of the considered rail pad and the rail were developed. Rounded corners and edges of the cylindrical-shaped elements were omitted, since their modelling required a significant density of the FE mesh. Vertical force perpendicular to the foot of the rail was declared as nodal force distributed evenly along the edges of the selected finite element models Non-linear static analysis was performed using MSC.Marc software with large displacements and deformations taken into consideration. The obtained results allowed estimating deformations and the state of stress in a highly deformed rail pad. The static stiffness of the pad was defined as secant stiffness based on the vertical force - deflection curve.
Źródło:: Journal of KONES; 2012, 19, 1; 407-414
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Electromagnetically excited audible noise - evaluation and optimisation of electrical machines by numerical simulation
Autorzy:: Schlensok, C.
Schmülling, B.
Giet, M.
Hameyer, K.
Powiązania:: https://bibliotekanauki.pl/articles/262795.pdf
Data publikacji:: 2006
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: numerical simulation
electrical machines
FEM
BEM
acoustics
structured analysis
Opis:: Disturbing vibrations and noise of electrical machines are gaining impact. Therefore, it is necessary to estimate the electromagnetic, structure-dynamical, and acoustic behavior of the machine during designing and before prototyping. An adequate tool is numerical simulation applying the Finite-Element Method (FEM) and the Boundary-Element Method (BEM) allowing for the structured analysis and evaluation of audible noise also caused by manufacturing tolerances. The methods developed and proved at the Institute of Electrical Machines (IEM) at RWTH Aachen University can be applied to any electromagnetic device in general.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2006, 12, 2; 121-128
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Slope stability estimation of the Kościuszko Mound in Cracow
Autorzy:: Wrana, B.
Pietrzak, N.
Powiązania:: https://bibliotekanauki.pl/articles/178864.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: soil analysis
FEM
slope stability analysis of soil mound
numerical analysis
PLAXIS program
Opis:: In the paper, the slope stability problem of the Kościuszko Mound in Cracow, Poland is considered. The slope stability analysis was performed using Plaxis FEM program. The outer surface of the mound has complex geometry. The slope of the cone is not uniform in all directions, on the surface of the cone are pedestrian paths. Due to its complicated geometry it was impossible to do computing by Plaxis input pre-procesor. The initial element mesh was generated using Autodesk Autocad 3D and next it was updated by Plaxis program. The soil parameters were adopted in accordance with the detailed geological soil testing performed in 2012. Calculating model includes geogrids. The upper part was covered by MacMat geogrid, while the lower part of the Mound was reinforced using Terramesh Matt geogrid. The slope analysis was performed by successives reduction of φ /c parameters. The total multiplayer ΣMsf is used to define the value of the soil strength parameters. The article presents the results of slope stability before and after the rainfall during 33 days of precipitation in flood of 2010.
Źródło:: Studia Geotechnica et Mechanica; 2015, 37, 2; 93-101
0137-6365
2083-831X
Pojawia się w:: Studia Geotechnica et Mechanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Numerical analysis of the deep drawing process including the history of stress and strain
Autorzy:: Kaldunski, P.
Powiązania:: https://bibliotekanauki.pl/articles/280806.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: deep drawing
modeling
numerical analysis
FEM
stress history
strain history
Opis:: This paper discusses the results of a numerical study of circular cup drawing of steel sheets using ﬁnite element method. The drawing process is considered as a geometrical and physical nonlinear problem with unknown boundary conditions in the contact area of the system, such as the tool and the workpiece. The updated Lagrangian description is used to characterize these nonlinear phenomena on a typical incremental step time. Numerical results are obtained using an explicit method in Ansys/Ls-Dyna program. The constitutive Cowper-Symonds material model with linear hardening strain to predict material plasticity is used. The results of implementation of stresses and strains from a blanking operation ﬂat disc of a sheet of metal for deep-drawing process are presented. After the blanking process simulation, an implicit springback analysis is performed. Then a numerical analysis of cup forming from this ﬂat disc plate was carried out. The analysis results are compared with one another through reading of the sheet thickness in several characteristic points and the overall height of the product.
Źródło:: Journal of Theoretical and Applied Mechanics; 2018, 56, 3; 781-792
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Numerical analysis of progressive failure of composite energy absorbing structures
Autorzy:: Niezgoda, T.
Barnat, W.
Powiązania:: https://bibliotekanauki.pl/articles/243301.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport safety
road barriers
numerical analysis
energy-absorbing element
FEM
Opis:: The aim of the paper was to compare the influence of the applied fill on the energy absorbed by the energy ubsorbing structural elements made of composite, steel and from composite with fill foam. The experimental tests were carried out on an INSTRON universal testing machine at the speed rate of the machine's traverse equal 10 mm/min md the numerical analysis has been performed using MSC. Dytran software based on the Finite Element Method. The elements were subjected to axial kinematic loads. The higher specific absorbed energy occurs in the case of energy absorbing elements made of composites and from composite with fill foam. These elements can be applied in structures designed for the protection of people or limitation of the whole structure failure, e.g. in the case of a helicopter or car crash etc. The failure progressing in a relatively uniform manner results in the fact that the work md for failure of an energy absorbing element causes a substantial reduction of the impact load results. Application of energy absorbing elements may be a system dissipating the energy of a car impact into a crash barrier. The results of numerical simulation of stiffness plate hitting to the road barrier are presented. Experimental tests and numerical simulations were also presented for a composite sleeve subjected to progressive failure, which allowed carrying out simulation and analysis of a crash into a road barrier protected by a system of two such sleeves.
Źródło:: Journal of KONES; 2008, 15, 1; 169-181
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Evaluation of the Damage Initiation of a Composite Thin-Walled Structure, on the Example of the ADUSTER Gyroplane Undercarriage
Autorzy:: Szklarek, Karol
Różyło, Patryk
Powiązania:: https://bibliotekanauki.pl/articles/103123.pdf
Data publikacji:: 2018
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: numerical analysis
FEM
ABAQUS
failure
analiza numeryczna
MES
Abaqus
niepowodzenie
Opis:: The subject of the research was a undercarriage leg of a gyroplane made of composite materials. The aim of the work was to assess the level of damage initiation of the composite gyroplane undercarriage. In the study, a structural capacity analysis was carried out, taking into account the phenomenon of damage initiation. Numerical calculations were conducted based on the finite element method in the ABAQUS® software. The issue was solved according to the Newton-Raphson algorithm.
Źródło:: Advances in Science and Technology. Research Journal; 2018, 12, 4; 48-55
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Modelowanie struktur kostnych dłonii analiza wytrzymałościowa MES w aspekcie obciążeń bokserskich
Modeling of a hand bone structure and strength analysis in the context of forces associated with boxing blows
Autorzy:: Mazur, A.
Łagan, S.
Powiązania:: https://bibliotekanauki.pl/articles/99273.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Śląska. Katedra Biomechatroniki
Tematy:: biomechanika
sport
MES
modelowanie
analiza numeryczna
biomechanics
FEM
modelling
numerical analysis
Opis:: Artykuł prezentuje zagadnienia związane z zastosowaniem modelowania inżynierskiego w zakresie struktur kostno-chrzęstnych. W ramach pracy stworzony został model kośćca ręki zaciśniętej w pięść wraz z fragmentem kości promieniowej i łokciowej. Symulacja ma na celu zbadanie reakcji kości ręki człowieka na zderzenie z płaską przeszkodą (cios bokserski). Analizowano dwa przypadki, rozstrzygające skuteczność stosowania rękawic bokserskich. Do stworzenia modelu i przeprowadzenia analizy wytrzymałościowej użyto odpowiednich systemów CAD 3D.
The article presents the issues associated with engineering modeling of osteochondral structures. In this project there was created a virtual model of hand skeleton clenched in a fist with the radius and ulna. The simulation aims to examine the response of human hand bones in a collision with a flat obstacle (boxing blow). There was two cases considered and compared, conclusive efficacy of boxing gloves. To create the model and analysis of strength, it was used Computer Aided Design system (CAD 3D).
Źródło:: Aktualne Problemy Biomechaniki; 2014, 8; 115-120
1898-763X
Pojawia się w:: Aktualne Problemy Biomechaniki
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Study of FEM model for tension and compression test for aluminum alloys samples in order to set materiał data
Autorzy:: Zduniak, B.
Morka, A.
Gieleta, R.
Powiązania:: https://bibliotekanauki.pl/articles/247620.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: numerical analysis
material data
Johnson-Cook model
P A11
FEM
Opis:: The purpose of this paper is to conform an available material data for aluminum alloy material (P A11). This task was filled with the aid of computer modeling techniques, which are based on Finite Element Method (FEM), and our own experimental tests of quasistatic tension/compression material samples. For this kind of research FEM is most commonly used, but there are also other numerical methods that can be applied. The idea of FEM is the division of the given continuous area into a finite number of subareas (finite elements) connected with one another in nodal points and approximation of solution inside the finite elements using interpolation functions and function values in nodes. Numerical analysis was performed with the LS-Dyna commercial software. Reconstruction of conditions of experiment required application of implicit method of numerical integration in time, so called implicit solver. At this stage of work the aluminum alloy P A11 with respect to Johnson-Cook model was researched. A further work for fmding a good material data for WHA, U12A steel for other constitutive models will be performed. A good agreement of the numerical and experimental results is received. Other material data used in modeling, which were not determined by experiment, assumed according to literature sources.
Źródło:: Journal of KONES; 2010, 17, 3; 527-532
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Comparison of the temperature distribution in the dry and wet cylinder sleeve in unsteady state
Autorzy:: Gustof, P.
Jędrusik, D.
Powiązania:: https://bibliotekanauki.pl/articles/243978.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: numerical techniques
analysis and modelling of heat loads
cylinder sleeve
FEM
Opis:: This paper presents the modelling of the heat loads in the dry and wet cylinder sleeve in unsteady state. Next compared the results obtained temperature distribution on the individual surfaces of the dry and wet cylinder from the moment of starting the turbocharged Diesel engine to the moment when the distribution of the temperature changed in a small range. Modelling was conducted based on the boundary conditions III kind as a function of time, which describes the convective heat transfer coefficient and the temperature of the surrounding surfaces of cylinder sleeve, appointed on the basis of the bizonal model. The thesis used thefinite elements method (FEM). The calculations show that topparts of the cylinder sleeve near of the mount flange heat up thefastest however the temperature in the bottom parts below the 3rd ring in the piston is the lowest. Higher temperature of the dry cylinder sleeve in relation to the wet is caused by the fact that different convective heat transfer coefficients on the side of the liquid coolant were assumed. The highest difference of average temperature occurs in the initial phase of heating up of the dry and wet cylinder sleeve between 5 and 15 second. In the result of carried out calculations it was stated that the cylinder sleeve fastest heats up during first 20 second of the engine work then the temperature starts to stabilize and in 40 second it changes in a small range.
Źródło:: Journal of KONES; 2010, 17, 3; 119-125
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Application of ANSYS in teaching FEM on the example of a loaded Mars rover chassis
Autorzy:: Łazuka, M.
Łazuka, E.
Powiązania:: https://bibliotekanauki.pl/articles/103140.pdf
Data publikacji:: 2016
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: ANSYS
FEM
finite element method
numerical analysis
teaching
bending
beam
chassis
Opis:: The aim of the paper is to present the idea of using ANSYS software in teaching engineering students the finite element method. ANSYS is an extremely sophisticated engineering tool used in almost every engineering company nowadays. It is introduced to almost all engineering students during their studies. Using ANSYS knowingly requires perfect understanding of the finite element method that is responsible for ANSYS work. This paper presents how this professional software can help students master FEM. The first part of the paper introduces the finite element method. It also suggests a way of using ANSYS in teaching FEM on the example of a twodimensional restrained beam calculated in a simple computer program. The second part illustrates the effectiveness of ANSYS with sample FEM analysis of a planetary rover’s chassis and presents basic fuctionalities of ANSYS Workbench Mechanical. Conducted calculations provide useful data about the model’s suitability for its purpose and possibility of modifications.
Źródło:: Advances in Science and Technology. Research Journal; 2016, 10, 32; 269-274
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: A comparative numerical analysis of glued laminated timber beams reinforced with bars made of various materials
Autorzy:: Jończyk, Damian
Powiązania:: https://bibliotekanauki.pl/articles/2065641.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Częstochowska
Tematy:: glulam
kompozyty włókniste
FRP
MES
analiza numeryczna
fiber composites
FEM
numerical analysis
Opis:: The use of fibrous composites to reinforce various structures is an increasingly common practice in construction. Wooden structures are commonly reinforced with composite materials. However, due to the lack of standard regulations for the design of reinforcements with the use of composites, many structural calculations are made in numerical analysis programs using the Finite Element Method (FEM). The article presents numerical calculations of glued laminated timber beams reinforced with various composite rods made using basalt, aramid, glass and carbon fibers. The stiffnesses and the normal stress distributions of the reinforced beam and the comparative, unreinforced beam were compared. The most effective reinforcement found uses carbon CFRP rods.
Źródło:: Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2021, 10, 1; 151--159
2299-8535
2544-963X
Pojawia się w:: Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:: Biblioteka Nauki

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