On vibrational imperfection sensitivity of Augusti's model structure in the vicinity of a non-linear static state

Author Type

Faculty

Co-Author Type 1

Outside Researcher

Co-Author Type 2

Outside Researcher

Co-Author Type 3

Outside Researcher

College

Engineering and Computer Science

Department

Ocean and Mechanical Engineering

Document Type

Article

Publication/Event/Conference Title

International Journal of Non Linear Mechanics

Publication Status

Version of Record

Abstract

In this paper we present a closed-form solution for vibrational imperfection sensitivity - the effect of small imperfections on the vibrational frequencies of perturbed motion around the static equilibrium state of Augusti's model structure (a rigid link, pinned at one end to a rigid foundation and supported at the other by a linear extensional spring that retains its horizontality as the system deflects). We also treat a modified version of that model with attendant slightly different dynamics. It is demonstrated that the vibrational frequency decreases as the initial imperfections increase.

First Page

229

Last Page

236

DOI

10.1016/0020-7462(95)00054-2

Publication Date

1-1-1996

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