Temat: metoda elementów skończonych - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A study of the preload force in metal-elastomer torsion springs
Autorzy:: Sikora, W.
Michalczyk, K.
Machniewicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/386440.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: hyperelastic materials
neidhart spring
metal-elastomer spring
FEM
finite element method
materiał hiperelastyczny
elastomer
metoda elementów skończonych
MES
Opis:: Neidhart type suspension units composed of metal-elastomer torsion springs can be a good alternative to steel helical springs in applications such as vibration absorbers or vehicle suspension systems. Assembling this type of spring requires initial preload of the elastomeric working elements, which determines their operating properties.The results of experimental tests and numerical simulations concerning the preload of elastomeric working elements in Neidhart type suspension units are presented in the paper. The performed research made it possible to propose a new calculation model for determining the preload force value acting on the elastomeric cylindrical elements applied in this type of suspension unit. The results obtained using the proposed model exhibit good convergence with FEM simulation results within the range of the tested geometrical and material properties.
Źródło:: Acta Mechanica et Automatica; 2016, 10, 4; 300-305
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Coupled static and dynamic buckling modelling of thin-walled structures in elastic range review of selected problems
Autorzy:: Kołakowski, Z.
Teter, A.
Powiązania:: https://bibliotekanauki.pl/articles/387475.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: interaction
buckling
thin-walled structures
FEM
analytical-numerical method
review
odkształcenia
konstrukcje cienkościenne
metoda analityczno-numeryczna
metoda elementów skończonych
MES
Opis:: A review of papers that investigate the static and dynamic coupled buckling and post-buckling behaviour of thin-walled structures is carried out. The problem of static coupled buckling is sufficiently well-recognized. The analysis of dynamic interactive buckling is limited in practice to columns, single plates and shells. The applications of finite element method (FEM) or/and analytical-numerical method (ANM) to solve interaction buckling problems are on-going. In Poland, the team of scientists from the Department of Strength of Materials, Lodz University of Technology and co-workers developed the analytical-numerical method. This method allows to determine static buckling stresses, natural frequencies, coefficients of the equation describing the post-buckling equilibrium path and dynamic response of the plate structure subjected to compression load and/or bending moment. Using the dynamic buckling criteria, it is possible to determine the dynamic critical load. They presented a lot of interesting results for problems of the static and dynamic coupled buckling of thin-walled plate structures with complex shapes of cross-sections, including an interaction of component plates. The most important advantage of presented analytical-numerical method is that it enables to describe all buckling modes and the post-buckling behaviours of thin-walled columns made of different materials. Thin isotropic, orthotropic or laminate structures were considered.
Źródło:: Acta Mechanica et Automatica; 2016, 10, 2; 141-149
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Local and distortional buckling of axially loaded cold rolled sigma profiles
Autorzy:: Ciesielczyk, K.
Rzeszut, K.
Powiązania:: https://bibliotekanauki.pl/articles/387559.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: cold rolled sigma profiles
local and distortional buckling
eurocode 3
finite element method
FEM
walcowanie na zimno
eurokody
metoda elementów skończonych
MES
profil walcowany
Opis:: In this paper the local and distortional buckling analyses of axially loaded cold-rolled channel and sigma profiles were performed. The critical buckling load was computed by solving the linear eigenvalue problem for different numerical models using Finite Element Method and simplified formulas implemented in Eurocode and proposed by Hancock and Schafer. The buckling analyses were conducted to prove that the sigma cross-section can be successfully replaced by channel cross-section with additional elastic supports placed in folds of the web. It was demonstrated that the folds in the web of the sigma cross-section (additional elastic supports) reduce the slenderness of the web. So, the critical distortional stress can be calculated based on analytical formulas derived for the channel crosssection taking into account the web height between the folds.
Źródło:: Acta Mechanica et Automatica; 2016, 10, 3; 218-222
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

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