Experimental Assumption of Steel Pipe Modal Parameters Using Common and Simplified Approach

Martin Hagara^1, and Jozef Bocko¹

¹Department of Applied Mechanics and Mechanical Engineering, Technical University of Košice, Faculty of Mechanical Engineering, Košice, Slovakia

Cite this paper:
Martin Hagara and Jozef Bocko. Experimental Assumption of Steel Pipe Modal Parameters Using Common and Simplified Approach. American Journal of Mechanical Engineering. 2017; 5(6):284-288. doi: 10.12691/ajme-5-6-10

Abstract

The contribution deals with describing of two experimental approaches leading to assumption of modal parameters in a form of natural frequencies, mode shapes and damping of freely supported steel pipe. In the first approach, the model of the pipe was created in common way using planar elements. In the second one, the model of the pipe was simplified using line elements, which should lead to the increasing of time needed for realization of experimental investigation. The results obtained by both approaches as well as their pros and cons are described in the paper.

Keywords:
experimental modal analysis natural frequencies mode shapes damping pipe

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