Natural frequencies of structures with uncertain-but-bounded parameters

Author Type

Outside Researcher

Co-Author Type 1

Outside Researcher

Co-Author Type 2

Faculty

Co-Author Type 3

Outside Researcher

College

Engineering and Computer Science

Department

Ocean and Mechanical Engineering

Document Type

Conference Proceeding

Publication/Event/Conference Title

Safety Reliability Risk and Life Cycle Performance of Structures and Infrastructures Proceedings of the 11th International Conference on Structural Safety and Reliability Icossar 2013

Publication Status

Version of Record

Abstract

The present paper deals with the solution of the interval eigenvalue problem for structural systems with uncertain-but-bounded parameters.The proposed approach for evaluating the bounds of the interval eigenpropertiesmay be viewed as an appropriate extension of a procedure originally developed by the third author. The original contribution consists in the use of the so-called improved interval analysis, recently proposed by the first two authors to limit the effects of the dependency phenomenon. Mass and stiffness uncertainties are considered either coincident, completely disjoint or partially disjoint, so as to cover all possible situations occurring in real structural problems. The accuracy of the proposed estimates of the bounds of the interval natural frequencies is demonstrated by comparisons with the vertex method solutions. © 2013 Taylor & Francis Group, London.

First Page

2955

Last Page

2962

Publication Date

12-1-2013

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