Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
SPECTRAL MODEL AND VIBRATION ANALYSIS OF BEAMS CONNECTED BY BOLTS-JOINT
Submission Author:
Jefferson Coelho , AM
Co-Authors:
Jefferson Coelho, Amanda Aryda Silva Rodrigues de Sousa, Marcela Machado, Ariosto Jorge
Presenter: Jefferson Coelho
doi://10.26678/ABCM.COBEM2021.COB2021-2036
Abstract
Structures are commonly jointed using fasteners such as rivets or bolts arranged in various configurations depending on the required performance. Bolted structures are widely utilised in industrial structures and equipment due to the numerous advantages they possess. They are an important part of the system and can influence its dynamic response. In this paper, two beams are connected with a bolt-joint and modelled using the spectral element method (SEM). The equivalent spectral model represents the bolt-joint and the beams. The identification of dynamic characteristics of the system is validated by comparing the results to the commercial finite element- ANSYS. It is found that the vibration responses obtained with SEM are in good agreement with the dynamic responses estimated via FEM. The advantage of using SEM are the reduced number of elements in the mesh and high accuracy in the vibration response prediction.
Keywords
Vibration characterisation, Bolt-joint, spectral element method, Finite Element Method
