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Time Intervals for Maintenance of Offshore Structures Based on Multiobjective Optimization
Joint Authors
Ruiz, Sonia E.
Tolentino, Dante
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-06
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
With the aim of establishing adequate time intervals for maintenance of offshore structures, an approach based on multiobjective optimization for making decisions is proposed.
The formulation takes into account the degradation of the mechanical properties of the structures and its influence over time on both the structural capacity and the structural demand, given a maximum wave height.
The set of time intervals for maintenance corresponds to a balance between three objectives: (a) structural reliability, (b) damage index, and (c) expected cumulative total cost.
Structural reliability is expressed in terms of confidence factors as functions of time by means of closed-form mathematical expressions which consider structural deterioration.
The multiobjective optimization is solved using an evolutionary genetic algorithm.
The approach is applied to an offshore platform located at Campeche Bay in the Gulf of Mexico.
The optimization criterion includes the reconstruction of the platform.
Results indicate that if the first maintenance action is made in 5 years after installing the structure, the second repair action should be made in the following 7 to 10 years; however, if the first maintenance action is made in 6 years after installing the structure, then the second should be made in the following 5 to 8 years.
American Psychological Association (APA)
Tolentino, Dante& Ruiz, Sonia E.. 2013. Time Intervals for Maintenance of Offshore Structures Based on Multiobjective Optimization. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-1008484
Modern Language Association (MLA)
Tolentino, Dante& Ruiz, Sonia E.. Time Intervals for Maintenance of Offshore Structures Based on Multiobjective Optimization. Mathematical Problems in Engineering No. 2013 (2013), pp.1-15.
https://search.emarefa.net/detail/BIM-1008484
American Medical Association (AMA)
Tolentino, Dante& Ruiz, Sonia E.. Time Intervals for Maintenance of Offshore Structures Based on Multiobjective Optimization. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-1008484
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1008484