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A platform for research: civil engineering, architecture and urbanism
A methodology for structural analysis and optimization of riser connection joints
Abstract In riser structural systems, the region where the riser is connected to the platform is critical due to the development of high stress levels. To reduce the stress concentration in this region, bend stiffeners and stress joints are used in order to provide a gradual stiffness transition between the riser and the platform. The present paper presents an optimization design approach for bend stiffeners and stress joints, using a slender beam procedure for the connection joint analysis and an evolution strategies multi-objective optimization algorithm. This approach produces similar results when compared to a finite element analysis of the complete riser, but with significant reduction of computational costs. Numerical examples are presented, showing the efficiency and robustness of the suggested methodology.
A methodology for structural analysis and optimization of riser connection joints
Abstract In riser structural systems, the region where the riser is connected to the platform is critical due to the development of high stress levels. To reduce the stress concentration in this region, bend stiffeners and stress joints are used in order to provide a gradual stiffness transition between the riser and the platform. The present paper presents an optimization design approach for bend stiffeners and stress joints, using a slender beam procedure for the connection joint analysis and an evolution strategies multi-objective optimization algorithm. This approach produces similar results when compared to a finite element analysis of the complete riser, but with significant reduction of computational costs. Numerical examples are presented, showing the efficiency and robustness of the suggested methodology.
A methodology for structural analysis and optimization of riser connection joints
Bazán, Felipe Alexander Vargas (author) / de Lima, Edison Castro Prates (author) / de Siqueira, Marcos Queija (author) / Siqueira, Elizabeth Frauches Netto (author) / de Lemos, Carlos Alberto Duarte (author)
Applied Ocean Research ; 33 ; 344-365
2011-06-27
22 pages
Article (Journal)
Electronic Resource
English
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