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FREE VIBRATION ANALYSIS OF HELICOIDAL BARS WITH THIN-WALLED CIRCULAR TUBE CROSS-SECTION VIA MIXED FINITE ELEMENT METHOD

Year 2015, Volume: 33 Issue: 2, 200 - 218, 01.06.2015

Abstract

In this study, the free vibration analysis of cylindrical and non-cylindrical helicoidal bars with thin-walled circular tube cross-section is investigated by using the mixed finite element formulation based on Timoshenko beam theory. Frenet triad is adopted as the local coordinate system in the helix geometry. The curved elements involve two nodes, where each node has 12 DOF, namely three translations, three rotations, two shear forces, one axial force, two bending moment and one torque. Numerical solutions are performed to analyze the dynamic behavior of the helix geometries and benchmark results are presented. Parametric studies are carried out to investigate the influence of the section geometry, the helicoidal geometry, the boundary conditions and the density of the material.

References

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There are 19 citations in total.

Details

Primary Language English
Journal Section Research Articles
Authors

Nihal Eratlı This is me

Merve Ermiş This is me

Mehmet H. Omurtag This is me

Publication Date June 1, 2015
Submission Date January 22, 2015
Published in Issue Year 2015 Volume: 33 Issue: 2

Cite

Vancouver Eratlı N, Ermiş M, Omurtag MH. FREE VIBRATION ANALYSIS OF HELICOIDAL BARS WITH THIN-WALLED CIRCULAR TUBE CROSS-SECTION VIA MIXED FINITE ELEMENT METHOD. SIGMA. 2015;33(2):200-18.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK https://eds.yildiz.edu.tr/sigma/