Optimization of composite catenary risers

Abstract The use of composite risers may offer important advantages over the use of conventional steel risers in deepwater oil fields. However, the design of laminated composite risers is much more complex than the design of steel risers, due to the large number of parameters that need to be chosen to define the riser layup. This work presents a methodology for optimum design of composite catenary risers, where the objective is the minimization of cross-sectional area of the riser and the design variables are the thickness and fiber orientation of each layer of the composite tube. Strength and stability constraints are included in the optimization model and multiple load cases are considered. The methodology can handle both continuous and discrete variables. Gradient-based and genetic algorithms are used in the computer implementation. The proposed methodology is applied to the optimization of composite catenary risers with different water depths, liner materials, and failure criteria. The numerical examples show that the proposed methodology is very robust.

[1]  Armando Miguel Awruch,et al.  Design optimization of composite laminated structures using genetic algorithms and finite element analysis , 2009 .

[2]  Zafer Gürdal,et al.  A penalty approach for nonlinear optimization with discrete design variables , 1990 .

[3]  Fazil O. Sonmez,et al.  Optimum design of composite laminates for maximum buckling load capacity using simulated annealing , 2005 .

[4]  Mamdouh M. Salama.  Some Challenges and Innovations for Deepwater Developments , 1997 .

[5]  Raphael T. Haftka,et al.  Design and optimization of laminated composite materials , 1999 .

[6]  Won Ki Kim,et al.  Composite production riser assessment , 2007 .

[7]  R. Cook,et al.  Concepts and Applications of Finite Element Analysis , 1974 .

[8]  Sarp Adali,et al.  Minimum sensitivity design of laminated shells under axial load and external pressure , 2001 .

[9]  Mamdouh M. Salama,et al.  Offshore composites: Transition barriers to an enabling technology , 2005 .

[10]  J. Reddy.  Mechanics of laminated composite plates and shells : theory and analysis , 1996 .

[11]  Beatriz Souza Leite Pires de Lima,et al.  A hybrid fuzzy/genetic algorithm for the design of offshore oil production risers , 2005 .

[12]  Jasbir S. Arora,et al.  Introduction to Optimum Design , 1988 .

[13]  Mahmoud Shakeri,et al.  Multi-objective stacking sequence optimization of laminated cylindrical panels using a genetic algorithm and neural networks , 2007 .

[14]  J. P. Peterson,et al.  Buckling of thin-walled circular cylinders, NASA SPACE VEHICLE DESIGN CRITERIA (Structures) , 1965 .

[15]  Zafer Gürdal,et al.  Optimization of a composite cylinder under bending by tailoring stiffness properties in circumferential direction , 2010 .

[16]  A. Rama Mohan Rao,et al.  A Meta‐Heuristic Algorithm for Multi‐Objective Optimal Design of Hybrid Laminate Composite Structures , 2010, Comput. Aided Civ. Infrastructure Eng..

[17]  J. F. Saint-Marcoux,et al.  Technical and Economical Evaluation of Composite Riser Systems , 2002 .

[18]  Hezhen Yang,et al.  Optimization Design of Deepwater Steel Catenary Risers Using Genetic Algorithm , 2009 .

[19]  C. P. Sparks,et al.  High-Performance Composite Tubes for Offshore Applications , 1987 .

[20]  Turid Storhaug,et al.  The First Offshore Field Installation for a Composite Riser Joint , 2002 .

[21]  Stephen R Reid,et al.  Preliminary design of composite riser stress joints , 2001 .

[22]  Ozden O. Ochoa,et al.  Flexural response of spoolable composite tubulars: an integrated experimental and computational assessment , 2004 .

[23]  J. A. Witz.  A case study in the cross-section analysis of flexible risers , 1996 .

[24]  Beatriz Souza Leite Pires de Lima,et al.  Tailoring the particle swarm optimization algorithm for the design of offshore oil production risers , 2011 .

[25]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[26]  Thomas F. Coleman,et al.  Optimization Toolbox User's Guide , 1998 .

[27]  Carl M. Larsen,et al.  Optimization of Catenary Risers , 1999 .

[28]  Beatriz S. L. P. de Lima,et al.  Optimization of Steel Catenary Risers for Offshore Oil Production Using Artificial Immune System , 2008, ICARIS.

[29]  Rafael Loureiro Tanaka,et al.  Parallel Dynamic Optimization of Steel Risers , 2011 .

[30]  Fazil O. Sonmez,et al.  Optimum design of composite laminates for minimum thickness , 2008 .