Determination of the truss static state by means of the combined FE/GA approach, on the basis of strain and displacement measurements
Authors:
- Sławomir Milewski
Abstract
A real engineering inverse problem is considered in this paper, namely the recovery of the full static state of plane truss for StructuralHealthMonitoring(SHM)purposes.Availableexperimentaldata include strain or strain/displacement measurements done at few selected construction bars and nodes. All measurements are performed by means of sensors attached to the construction. The appropriate non-linear constrained optimization problem is formulated. Its numerical analysis is performed through the combination of the finite element method with genetic algorithms (FE/GA). Apart from the truss static load determination, the proposed approach may be applied to the identification of its bars with reduced tensile stiffness, as well as defective strain sensors. Moreover, the selection of the optimal number of strain sensors is considered. The work is illustrated with selected examples of truss analysis with various geometric complexity.
- Record ID
- CUT7f2ac1471f724f5db6aca1dbc584f855
- Publication categories
- ;
- Author
- Journal series
- Inverse Problems in Science and Engineering, ISSN 1741-5977, e-ISSN 1741-5985
- Issue year
- 2019
- Vol
- 27
- No
- 11
- Pages
- 1537-1558
- Other elements of collation
- schem.; wykr.; Bibliografia (na s.) - 1556-1558; Bibliografia (liczba pozycji) - 36; Oznaczenie streszczenia - Abstr.; Data udostępnienia on-line - 2018-08-21; Numeracja w czasopiśmie - Vol. 27, Iss. 11
- Keywords in English
- inverse truss analysis, load determination, finite element method, genetic algorithms
- DOI
- DOI:10.1080/17415977.2018.1509966 Opening in a new tab
- URL
- https://www.tandfonline.com/doi/abs/10.1080/17415977.2018.1509966 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 40
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT7f2ac1471f724f5db6aca1dbc584f855/
- URN
urn:pkr-prod:CUT7f2ac1471f724f5db6aca1dbc584f855
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.