Nonlinear dynamics of a flexible portal frame under support excitation | Zendy

Aline Souza de Paula | Zendy; José Manoel Balthazar | Zendy; Jorge Luis Palacios Félix | Zendy

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Nonlinear dynamics of a flexible portal frame under support excitation

Author(s) -

Aline Souza de Paula,

José Manoel Balthazar,

Jorge Luis Palacios Félix

Publication year - 2012

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.4765602

Subject(s) - nonlinear system , shaker , bifurcation , portal frame , frame (networking) , excitation , computer science , control theory (sociology) , lagrangian , degrees of freedom (physics and chemistry) , mathematics , mathematical analysis , physics , vibration , acoustics , artificial intelligence , telecommunications , control (management) , quantum mechanics

This paper presents a nonlinear dynamic analysis of a flexible portal frame subjected to support excitation, which is provided by an electro-dynamical shaker. The problem is reduced to a mathematical model of four degrees of freedom and the equations of motion are derived via Lagrangian formulation. The main goal of this study is to investigate the dynamic interactions between a flexible portal frame and a non-ideal support excitation. The numerical analysis shows a complex behavior of the system, which can be observed by phase spaces, Poincaŕ sections and bifurcation diagrams..

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