Axial Free Vibration of Euler-Bernoulli Beams via Ritz Method
Öz
This study used analytical and numerical methods to investigate Euler-Bernoulli beams’ free axial vibration behavior with homogeneous and linearly elastic properties. The equations derived within the framework of Hamilton’s principle were simplified through a non-dimensionalization approach and the system parameters were consolidated into a single dimensionless stiffness ratio. The analytical solution enabled the computation of natural frequencies by determining the roots of a transcendental equation. The approximate solutions obtained via the Ritz method were compared with the analytical results to assess the method’s convergence properties. The results indicate that increasing the number of parameters significantly enhances the agreement of the approximate solutions derived from the Ritz method with the analytical results, thereby validating the method’s applicability and effectiveness in structural dynamics analyses.
Anahtar Kelimeler
Euler-Bernoulli beam, Axial free vibration, Hamilton’s principle, Ritz method
Kaynakça
- Akgöz, B. (2019). Ritz yöntemi ile değişken kesitli kolonların burkulma analizi. Mühendislik Bilimleri ve Tasarım Dergisi, 7(2), 452–458. https://doi.org/10.21923/jesd.539288
- Akgöz, B., and Civalek, Ö. (2012). Longitudinal vibration analysis for microbars based on strain gradient elasticity theory. Journal of Vibration and Control, 20(4), 606–616. https://doi.org/10.1177/1077546312463752
- Akgöz, B., and Civalek, Ö. (2022). Buckling Analysis of Functionally Graded Tapered Microbeams via Rayleigh–Ritz Method. Mathematics, 10(23), 4429. https://doi.org/10.3390/math10234429
- Bhat, R. B. (1985). Natural frequencies of rectangular plates using characteristic orthogonal polynomials in Rayleigh-Ritz method. Journal of Sound and Vibration, 102(4), 493–499. https://doi.org/10.1016/S0022-460X(85)80109-7
- Bhat, R. B. (1986). Transverse vibrations of a rotating uniform cantilever beam with tip mass as predicted by using beam characteristic orthogonal polynomials in the Rayleigh-Ritz method. Journal of Sound and Vibration, 105(2), 199–210. https://doi.org/10.1016/0022-460X(86)90149-5
- Blevins, R. D. (1974). Fluid Elastic Whirling of a Tube Row. Journal of Pressure Vessel Technology, 96(4), 263–267. https://doi.org/10.1115/1.3454179
- Carrera, E. (1998). Evaluation of Layerwise Mixed Theories for Laminated Plates Analysis. AIAA Journal, 36(5), 830–839. https://doi.org/10.2514/2.444
- Chakraverty, S., and Behera, L. (2014). Free vibration of rectangular nanoplates using Rayleigh–Ritz method. Physica E: Low-Dimensional Systems and Nanostructures, 56, 357–363. https://doi.org/10.1016/j.physe.2013.08.014
- Challamel, N., & Zingales, M. (2025). Two-Phase Peridynamic Elasticity with Exponential Kernels. I: Statics and Vibrations of Axial Rods. Journal of Engineering Mechanics, 151(5). https://doi.org/10.1061/JENMDT.EMENG-8252
- Civalek, Ö., Uzun, B., and Yaylı, M. Ö. (2020). Stability analysis of nanobeams placed in electromagnetic field using a finite element method. Arabian Journal of Geosciences, 13, 1165. https://doi.org/10.1007/S12517-020-06188-8