![](/images/graphics-bg.png)
Direct Index Method of Beam Damage Location Detection Based on Difference Theory of Strain Modal Shapes and the Genetic Algorithms Application
Joint Authors
Zhenming, Bao
Deyou, Zhao
Zhe, Lin
Jun, Ma
Yaobao, Zhen
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-11
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Structural damage identification is to determine the structure health status and analyze the test results.
The three key problems to be solved are as follows: the existence of damage in structure, to detect the damage location, and to confirm the damage degree or damage form.
Damage generally changes the structure physical properties (i.e., stiffness, mass, and damping) corresponding with the modal characteristics of the structure (i.e., natural frequencies, modal shapes, and modal damping).
The research results show that strain mode can be more sensitive and effective for local damage.
The direct index method of damage location detection ISMSD is based on difference theory, without the modal parameter of the original structure.
FEM numerical simulation to partial crack with different degree is done.
The criteria of damage location detection can be obtained by strain mode difference curve through cubic spline interpolation.
Also the genetic algorithm box in Matlab is used.
It has been possible to identify the damage to a reasonable level of accuracy.
American Psychological Association (APA)
Zhenming, Bao& Deyou, Zhao& Zhe, Lin& Jun, Ma& Yaobao, Zhen. 2012. Direct Index Method of Beam Damage Location Detection Based on Difference Theory of Strain Modal Shapes and the Genetic Algorithms Application. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-1001488
Modern Language Association (MLA)
Zhenming, Bao…[et al.]. Direct Index Method of Beam Damage Location Detection Based on Difference Theory of Strain Modal Shapes and the Genetic Algorithms Application. Mathematical Problems in Engineering No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-1001488
American Medical Association (AMA)
Zhenming, Bao& Deyou, Zhao& Zhe, Lin& Jun, Ma& Yaobao, Zhen. Direct Index Method of Beam Damage Location Detection Based on Difference Theory of Strain Modal Shapes and the Genetic Algorithms Application. Mathematical Problems in Engineering. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-1001488
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1001488