Dynamic modeling by finite element method for vibration analysis in spatial structures subjected to external forces

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Ricardo L O Rosa
Maurício Gruzman

Abstract

The dynamic modeling of spatial structures is used in several types of projects that aim to build three-dimensional structures, allowing the analysis and simulation of the structure by computational means, predicting behavior of the system and enabling the correction of project parameters before the construction of a prototype or product. This paper aims to present a methodolog y for dynamic modeling of spatial structures using the finite element method (FEM), epresenting each regular straight section representing each regular straight section of the system as a one-dimensional finiteelement (OFE). The model adopted to demonstrate the methodolog y, formed by eight OFEs, presented results compatible with the analytical solution for deformations in the structure due to gravitational force and vibrational behavior consistent with a real physical structure when initially disturbed by a certain impulse force. It was concluded at the end that the presented method can be used effectively in the vibrational dynamic modeling of spatial structures.

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How to Cite
Rosa, R. L. O., & Gruzman, M. (1). Dynamic modeling by finite element method for vibration analysis in spatial structures subjected to external forces. Revista Militar De Ciência E Tecnologia, 38(2), 28-35. Retrieved from http://ebrevistas.eb.mil.br/CT/article/view/8646
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