Temat: tolerance-periodic microstructure - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Vibrations of thin functionally graded plates with tolerance-periodic microstructure
Autorzy:: Kaźmierczak-Sobińska, M.
Jędrysiak, J.
Powiązania:: https://bibliotekanauki.pl/articles/127924.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: thin functionally graded plates
tolerance-periodic microstructure
tolerance modelling
cienkie płyty gradientowe
mikrostruktura periodyczna
modelowanie tolerancyjne
Opis:: This paper presents a problem of vibrations of thin functionally graded plates. To describe this kind of plates three averaged models are proposed: a tolerance model, an asymptotic model and a combined asymptotictolerance model, cf. [10]. Calculational results obtained for a functionally graded plate band using the proposed models are compared to each other.
Źródło:: Vibrations in Physical Systems; 2014, 26; 99-104
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The vibrations of non-symmetric periodic sandwich beams
Autorzy:: Marczak, Jakub
Powiązania:: https://bibliotekanauki.pl/articles/2146552.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: sandwich beams
vibrations
tolerance averaging technique
periodic microstructure
belka warstwowa
drgania
technika uśredniania tolerancyjnego
mikrostruktura periodyczna
Opis:: Sandwich structures are certain specific type of composites, which are widely used in modern engineering. In this paper the vibration analysis of a specific type of sandwich beam is performed. The considered structure is not only non-symmetric towards its midplane, but also made of periodically varying isotropic materials. As a result, the governing equations of such complicated structure is characterised by periodic, non-continuous and highly oscillating coefficients. With the use of the tolerance averaging technique those equations are transformed into the form with constant coefficients. Eventually, a comparative simulations of free vibration analysis of several sandwich beams were conducted to verify the effectiveness and superiority of proposed calculation method over the FEM.
Źródło:: Vibrations in Physical Systems; 2020, 31, 2; art. no. 2020218
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Vibrations of microstructured beams with axial force
Autorzy:: Jędrysiak, Jarosław
Powiązania:: https://bibliotekanauki.pl/articles/2146554.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: microstructured periodic beams
slender beams
effect of microstructure
tolerance modelling
belka o strukturze periodycznej
belka smukła
efekt mikrostruktury
modelowanie tolerancyjne
Opis:: In this contribution there are considered vibrations of microstructured periodic slender beams, with axial force. In order to analyse the effect of the microstructure size of the beams on their vibrations the tolerance modelling method is applied. Using this method there are derived governing equations of two tolerance models - general and standard, base on two various concepts - weakly-slowly-varying functions and slowly-varying functions. These models are applied to obtain formulas of lower order and higher order frequencies with influence of the axial force. To evaluate these results of the modelling the formula of lower order frequencies in the framework of the asymptotic model (neglecting the effect of the microstructure size) is also derived.
Źródło:: Vibrations in Physical Systems; 2020, 31, 2; art. no. 2020208
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Higher order vibrations of thin periodic plate bands with various boundary conditions
Autorzy:: Jędrysiak, J.
Wyrwa, P.
Powiązania:: https://bibliotekanauki.pl/articles/127710.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: periodic plates
effect of microstructure size
higher order vibrations
tolerance modelling
płyty periodyczne
rozmiar mikrostruktury
drgania wyższego rzędu
modelowanie tolerancyjne
Opis:: In this contribution there are considered thin periodic plates. The tolerance averaging method, cf. [12, 13, 4], is applied to model problems of vibrations of these plates. Hence, the effect of the microstructure size is taken into account in model equations of the tolerance model. Calculations are made for periodic plate bands using this model and the asymptotic model for various boundary conditions.
Źródło:: Vibrations in Physical Systems; 2016, 27; 181-186
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Vibrations of periodic sandwich plates with inert core
Autorzy:: Marczak, J.
Jędrysiak, J.
Powiązania:: https://bibliotekanauki.pl/articles/128072.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: periodic sandwich plates
inert core
tolerance averaging
free vibrations
microstructure effect
płyty warstwowe
tolerancyjne uśrednianie
drgania własne
drgania swobodne
efekt mikrostruktury
Opis:: In this note a free vibration analysis of periodic three-layered sandwich structures is performed. The equations of motion of such structures, which are derived basing on Kirchhoff's thin plate theory, contain periodic, non-continuous and highly oscillating coefficients, which makes them difficult to solve. In this work, the tolerance averaging technique is applied in order to transform the mentioned system of equations into a form with constant coefficients, which takes into account the effect of the microstructure size. The differences between two modelling procedures are shown and discussed. Eventually, formulas for free vibration frequencies of an exemplary 2D structure are derived and an analysis of influence of certain varying material properties is performed.
Źródło:: Vibrations in Physical Systems; 2016, 27; 265-272
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

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