Original scientific paper

Developed procedure for dynamic reanalysis of structures

Nataša TRIŠOVIĆ orcid.org/0000-0003-1043-5780 ; Faculty of Mechanical Engineering Belgrade University, Belgrade, Serbia
Taško MANESKI ; Faculty of Mechanical Engineering Belgrade University, Belgrade, Serbia
Dražan KOZAK orcid.org/0000-0001-5245-4686 ; Mechanical Engineering Faculty in Slavonski Brod, J. J. Strossmayer University of Osijek, Slavonski Brod, Croatia

Abstract

Structural dynamic modification techniques can be defined as methods
by which dynamic behavior of a structure is improved by predicting the
modified behavior brought about by adding modifications like those of
lumped masses, rigid links, dampers, beams etc. or by variations in the
configuration parameters of the structure itself. The methods of structural
dynamic modification, especially those with their roots in finite element
models, have often been described as reanalysis. The present paper deals
with the problem of improving of dynamic characteristics some structures.
New dynamic modification procedure is given as using distribution of
potential and kinetic energy in every finite element is used for analysis.
The main goal of dynamic modification is to increase natural frequencies
and to increase the difference between them. Some information should be
prepared, before setting up the FE model. The first pack of information
includes referent peaces of information about the structure: size, material,
and boundary conditions.

Keywords

Dinamičko ponašanje konstrukcije; Metoda konačnih elemenata (MKE); Modifikacija; Reanaliza; Vlastite vrijednosti

Hrčak ID:

56742

URI

https://hrcak.srce.hr/56742

Publication date:

30.4.2010.

Article data in other languages: croatian

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