Journal of
Faculty of Civil Engineering

JOURNAL OF FACULTY OF CIVIL ENGINEERING
INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVILENGINEERING 25, 2014.y., pp. 433-438

	DOI: 10.14415/konferencijaGFS2014.059
	UDC: 534:519.6
	CC-BY-SA 4.0 license
	Author : Marić, Petar; Milašinović, Dragan D.
	Summary:
	This paper analyzes the problem of solving the free vibration and bifurcation buckling of folded plate structures with different boundary conditions. For the boundary conditions different from those of the strip simply supported on both ends, the orthogonality characteristics for the integral expressions that appear in the stiffness matrix formulation are no valid. To calculate the blocks of the stiffness matrix, it would be necessary to know values of the integrals for all coupled series terms. This kind of the finite strip analysis is named the harmonic-coupled finite strip method. This paper present the solutions of the characteristic equations of the basic functions (or eigenfunctions) derived from the beam vibration equation for the beams with different boundary conditions.
	Keywords:
	Harmonic-coupled finite strip method, basic functions, roots of characteristic equations, accuracy of numerical evaluation, numerical analysis