Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8052356 | Applied Mathematical Modelling | 2016 | 11 Pages |
Abstract
The objective of the paper is to analyze the influence of bimoment induced by constant axial loads on the free motion of thin-walled beams with point-symmetric open cross-section. For various boundary conditions, a closed-form solution for natural frequencies of free harmonic vibrations was derived by using a general solution of governing differential equations of motion based on Vlasov's theory. In order to investigate the effect of the bimoment on natural frequencies, the numerical examples with symmetric Z cross-section are given. The obtained results, verified using an ANSYS finite element model, demonstrate that the influence of the bimoment is important in the assessment of torsional natural frequencies.
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Aleksandar ProkiÄ, Rastislav MandiÄ, Martina VojniÄ-PurÄar,