Free flexural vibrations of standard wide-flange H-beams with consideration of the shear effect
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Łukasiewicz Research Network – Poznan Institute of Technology, Polska
Submission date: 2024-03-18
Final revision date: 2024-05-20
Acceptance date: 2024-05-24
Online publication date: 2024-05-25
Publication date: 2024-11-16
Corresponding author
Krzysztof Magnucki
Łukasiewicz Research Network – Poznan Institute of Technology, Łukasiewicz Research Network – Poznan Institute of Technology, Polska
Rail Vehicles/Pojazdy Szynowe 2024,1-2,46-50
The subject of the paper is a simply supported standard wide-flange H-beam. Cross sections of this beam is analytically described as a three-layer structure. The shear effect in its succesive layers is taking into account with consideration of the classical shear stress formula called Zhuravsky shear stress. Based on Hamilton’s principle, two differential equations of motion are obtained. These equations are analytically solved and the fundamental natural frequency of flexural vibration for this beam is derived. Examplary calculations are carried out for selected five I-beams.