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Non-linear dynamics characteristics for damage detection

Trendafilova, I. (2002) Non-linear dynamics characteristics for damage detection. In: Third International Conference on Identification in Engineering Systems, 2002-04-15 - 2002-04-17, Swansea, UK.

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Abstract

The paper considers some possibilities to use pure time series analysis for damage diagnosis in vibrating structures. It introduces the basics of the state space methodology and discusses a number of possible methods to extract damage sensitive features from the state space representation of the attractor of a vibrating system. The discussed methods can be divided into two groups: methods that use non-linear dynamics characteristics and methods based on the statistical characteristics of the distribution of points on the attractor. Each possible damage feature is introduced separately and the advantages and shortfalls of its application are discussed. The application of the suggested techniques is demonstrated on a test case of a reinforced concrete plate.

Item type: Conference or Workshop Item (Paper)
ID code: 6324
Keywords: vibration-based structural health monitoring, non-linear time series analysis, nonlinear dynamics, dynamic system invariants, dynamic system attractor, mechanical engineering, Mechanical engineering and machinery
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
Depositing user: Strathprints Administrator
Date Deposited: 16 Jul 2008
Last modified: 04 Oct 2012 17:05
URI: http://strathprints.strath.ac.uk/id/eprint/6324

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