Abstract
In order to meet different performance requirements, a multi-objective optimization strategy was presented for the lateral buckling control of large-scale subsea pipeline systems based on the analytical model. The multi-objective optimization was performed with the NSGA-II algorithm to improve the lateral buckling control effects on the subsea pipeline through optimization of the layout scheme and design parameters of the distributed buoyancy sections. The optimization results show that the amount of the distributed buoyancy sections does not have absolute influence on the lateral buckling performance, and the Pareto-optimal set obtained from the multi-optimization provides helpful reference for designers to consider multiple performance requirements and choose more rational schemes.
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