Wszystkie pola: beam on elastic foundation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analytical investigation of a beam on elastic foundation with nonsymmetrical properties
Autorzy:: Wstawska, Iwona
Magnucki, Krzysztof
Kędzia, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/38883579.pdf
Data publikacji:: 2022
Wydawca:: Instytut Podstawowych Problemów Techniki PAN
Tematy:: homogeneous beam
elastic foundation
critical load
nonsymmetrical properties
Opis:: The subject of presented analytical and numerical investigation is the stability of an axially compressed beam on an elastic foundation. The shape function of the foundation was assumed. The formula was supplemented with the offset parameter. The critical values of loads were calculated and presented as a function of geometric and mechanical properties of the beam and nonsymmetrical properties of the elastic foundation. The highest values of critical loads can be obtained for the highest values of shape parameter and the lowest values of amplitudes of shape function. The values of critical loads increase with the increase of the value of the offset parameter.
Źródło:: Engineering Transactions; 2022, 70, 1; 77-93
0867-888X
Pojawia się w:: Engineering Transactions
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Free flexural vibration of a sandwich beam on an elastic foundation with variable properties
Autorzy:: Magnucki, K.
Wstawska, I.
Kedzia, P.
Powiązania:: https://bibliotekanauki.pl/articles/38697114.pdf
Data publikacji:: 2023
Wydawca:: Instytut Podstawowych Problemów Techniki PAN
Tematy:: free vibration
elastic foundation
sandwich beam
frequency
Galerkin method
Opis:: Free flexural vibration of a simply supported sandwich beam on an elastic foundation is the main purpose of the presented investigation. An analytical model of multi-layered beam on elastic foundation has been prepared. The authors submitted an original beam-foundation interaction model which based on variable parameters of the foundation and their influence on the beam response. This explanation leads to the possibility of continuous characterization of the beam-foundation interplay. A nonlinear mathematical function for symmetrical properties of the foundation has been adopted. The frequency equation as a function of geometric and mechanical properties of the beam and the parameters of the elastic foundation was derived using the Galerkin method. The analytical investigation has been divided into two parts: the analysis of elastic foundation with constant and variable properties. The unconventional shape function and the function of deflection have been introduced and employed. Moreover, the finite element analysis has been performed. Sample analytical and numerical calculations have been performed, demonstrating a good concurrence between both models. The difference between analytical and numerical values of the fundamental natural frequency did not exceed 0:5%.
Źródło:: Archives of Mechanics; 2023, 75, 6; 619-646
0373-2029
Pojawia się w:: Archives of Mechanics
Dostawca treści:: Biblioteka Nauki

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