Professional paper

https://doi.org/10.19279/TVZ.PD.2024-12-1-18

ANALYSIS OF PARAMETRIC RESONANCE BY THE FINITE ELEMENT METHOD

Krunoslav Pavković ; Zagreb University of Applied Sciences, Vrbik 8, 10000 Zagreb, Croatia *
Dean Čizmar ; Zagreb University of Applied Sciences, Vrbik 8, 10000 Zagreb, Croatia *
Marija Babić Tončić ; Zagreb University of Applied Sciences, Vrbik 8, 10000 Zagreb, Croatia, student *
Magdalena Kučinić ; Zagreb University of Applied Sciences, Vrbik 8, 10000 Zagreb, Croatia, student *

* Corresponding author.

Abstract

The paper explored the possibility of obtaining parametric resonance through the finite element method in the COSMOS/M software package. A nonlinear analysis method was employed in the NSTAR module, utilizing force increment control based on the Newton-Raphson method with a constant step size. The paper considered two finite element models. The first model consisted of a simple case of a hinge-supported IPE 120 profile column loaded with a longitudinal variable force at one end. The second, more complex, three-dimensional model of a concrete frame was analysed with a vertical dynamic acceleration at the columns support, aiming to achieve parametric resonance through the torsional response of the frame. The obtained results of the numerical models have shown that the parametric resonance in structures using the finite element method can be achieved.

Keywords

parametric resonance; COSMOS/M; dynamic stability; nonlinear model

Hrčak ID:

326440

URI

https://hrcak.srce.hr/326440

Publication date:

15.3.2024.

Article data in other languages: croatian

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