Culture Engineering Sciences

Investigation of the Eigenfrequency of the Bending Vibration of the Beam Clamped at Both Ends Around the Principle Directions of Inertia Based on a Single-Degree Freedom Model and a Finite Element Method Analysis

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2021-11-19
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Copyright (c) 2021 Zsolt Vadai, Dr. Hajdu Sándor, Dr. Kovács Imre

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Vadai, Z., Hajdu, S., & Kovács, I. (2021). Investigation of the Eigenfrequency of the Bending Vibration of the Beam Clamped at Both Ends Around the Principle Directions of Inertia Based on a Single-Degree Freedom Model and a Finite Element Method Analysis. International Journal of Engineering and Management Sciences, 6(3), 69-79. https://doi.org/10.21791/IJEMS.2021.3.6.
Received 2021-11-04
Accepted 2021-11-19
Published 2021-11-19
Abstract

In this study, we have dealt with the calculation methods of the eigenfrequencies associated with the bending vibrations of rectangular-shaped beams clamped at both ends. Said eigenfrequencies were determined analytically in the single-degree of freedom model of the beam and the case of the three-dimensional solid and three-dimensional rod models by finite element modal vibration analysis. We presented the calculation method of the characteristics of the analytical model and then calculated the eigenfrequency for a concrete example. We have described the concept of modal characteristics, and in the following, we have determined its natural frequency based on the solid-beam and rod models of the former beam. We calculated and compared the solutions belonging to the models recorded in different ways in 11 additional cases of the presented methods.

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