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Damage Identification of Trusses with Elastic Supports Using FEM and Genetic Algorithm
Joint Authors
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-24
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The computationally efficient damage identification technique for truss structures with elastic supports is proposed based on the force method.
To transform the truss with supports into the equivalent free-standing model without supports, the novel zero-length dummy members are employed.
General equilibrium equations and kinematic relations, in which the reaction forces and the displacements at the elastic supports are taken into account, are clearly formulated.
The compatibility equations, in terms of forces in which the flexibilities of elastic supports are considered, are explicitly presented using the singular value decomposition (SVD) technique.
Both member and reaction forces are simultaneously and directly obtained.
Then, all nodal displacements including constrained nodes are back calculated from the member and reaction forces.
Next, the microgenetic algorithm (MGA) is used to properly identify the site and the extent of multiple damages in truss structures.
In order to verify the superiority of the current study, the numerical solutions are presented for the planar and space truss models with and without elastic supports.
The numerical results indicate that the computational effort required by this study is found to be significantly lower than that of the displacement method.
American Psychological Association (APA)
Kim, Nam-Il& Lee, Jaehong. 2013. Damage Identification of Trusses with Elastic Supports Using FEM and Genetic Algorithm. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-482812
Modern Language Association (MLA)
Kim, Nam-Il& Lee, Jaehong. Damage Identification of Trusses with Elastic Supports Using FEM and Genetic Algorithm. Advances in Mechanical Engineering No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-482812
American Medical Association (AMA)
Kim, Nam-Il& Lee, Jaehong. Damage Identification of Trusses with Elastic Supports Using FEM and Genetic Algorithm. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-482812
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482812