Abstract This work describes an enhanced mooring optimization procedure, oriented towards recent floating production systems (FPS) for oil & gas exploitation in ultra-deep-water scenarios, which may present a large number of risers in an asymmetric layout. Acknowledging that the risers are the key component of an FPS, the optimization procedure is associated to an integrated mooring-riser design methodology; thus, instead of simply minimizing the platform offsets and/or the costs of the mooring system itself, one of the main objectives is to obtain a mooring configuration that ensures the integrity of the risers. Other highlights of the optimization procedure include the following aspects: Enhancements in the modeling of the optimization problem (including the definition of design variables, objective function and constraints that are relevant for such actual applications); The use of the PSO optimization algorithm associated to the e-constrained method to efficiently handle the constraints; Enhancements in the evaluation of candidate solutions, by full nonlinear time-domain dynamic Finite Element simulations with coupled models; and the implementation in a parallel computing environment to deal with the high associated computational costs. A case study considering an FPS representative of actual applications in deepwater scenarios is presented to illustrate the practical application of the optimization tool.

中文翻译：

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在集成设计方法的背景下优化系泊系统

摘要 这项工作描述了一种增强的系泊优化程序，面向最近用于超深水油气开采的浮式生产系统 (FPS)，可能会在不对称布局中呈现大量立管。承认立管是 FPS 的关键部件，优化程序与集成系泊立管设计方法相关；因此，不是简单地最小化平台偏移和/或系泊系统本身的成本，主要目标之一是获得确保立管完整性的系泊配置。优化程序的其他亮点包括以下方面： 优化问题建模的增强（包括设计变量的定义、与此类实际应用相关的目标函数和约束条件）；使用与 e 约束方法相关的 PSO 优化算法来有效处理约束；通过带有耦合模型的全非线性时域动态有限元模拟，增强了候选解决方案的评估；以及在并行计算环境中实现以处理相关的高计算成本。一个案例研究考虑了 FPS 代表在深水场景中的实际应用，以说明优化工具的实际应用。通过带有耦合模型的全非线性时域动态有限元模拟；以及在并行计算环境中实现以处理相关的高计算成本。一个案例研究考虑了 FPS 代表在深水场景中的实际应用，以说明优化工具的实际应用。通过带有耦合模型的全非线性时域动态有限元模拟；以及在并行计算环境中实现以处理相关的高计算成本。一个案例研究考虑了 FPS 代表在深水场景中的实际应用，以说明优化工具的实际应用。