Influence of Material Defects on the Dynamic Stability of the Bernoulli-Euler Beam

• Autorzy: Sochacki Wojciech , Garus Sebastian , Garus Justyna

Identyfikatory

DOI

10.24425/amm.2021.135887

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of tests on dynamic stability of Bernoulli-Euler beam with damages. Damages (cracks) were modeled using three rotational springs. An analysis of the influence of crack depth and their position relative to the beam ends on dynamic stability of the beam was carried out. The problem of dynamic stability was solved by applying the mode summation method. Applying an orthogonal condition of eigenfunctions, the dynamic of the system was described with the use of the Mathieu equation. The obtained equation allowed the dynamic stability of the tested system to be analyzed. Stable and unstable solutions were analyzed using the Strutt card.

Słowa kluczowe

EN

material cracks; beam; dynamic stability; Mathieu equation

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 2
• Strony: 519--522
• Opis fizyczny: Bibliogr. 16 poz., fot., rys., wzory

Twórcy

autor

Sochacki Wojciech

• Czestochowa University of Technology, Department of Mechanics and Fundamentals of Machinery Design, Faculty of Mechanical Engineering and Computer Science, 73 Dąbrowskiego Str., 42-201 Częstochowa, Poland

• https://orcid.org/0000-0002-2764-6480

autor

Garus Sebastian

• Czestochowa University of Technology, Department of Mechanics and Fundamentals of Machinery Design, Faculty of Mechanical Engineering and Computer Science, 73 Dąbrowskiego Str., 42-201 Częstochowa, Poland

• https://orcid.org/0000-0002-6649-5435

autor

Garus Justyna

• Czestochowa University of Technology, Department of Mechanics and Fundamentals of Machinery Design, Faculty of Mechanical Engineering and Computer Science, 73 Dąbrowskiego Str., 42-201 Częstochowa, Poland

• https://orcid.org/0000-0001-8001-2113

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).