Intelligent Optimization of Buoyancy Configuration for Deepwater Drilling Riser System Based on Vortex-induced Vibration Suppression

doi:10.3901/JME.2019.04.164

Abstract

Abstract: Vortex-induced fatigue is one of the main failure modes of the deepwater drilling riser system, and how to reduce the vortex-induced fatigue damage of the riser system through the buoyancy configuration design is the key problem to be solved. An intelligent optimization method of buoyancy configuration for deepwater drilling riser system is proposed based on genetic algorithm and VIV analysis model of riser system with buoyancy configuration characterized by the gene coding method. The intelligent optimization system of buoyancy configuration for deepwater drilling riser system is developed and enumeration method is applied for verification. At last, buoyancy configuration optimization design for different water depth is carried out. The results show that the proposed method can optimize the vortex-induced fatigue design of the riser system accurately and efficiently. Compared with the traditional experience design of the riser system, the proposed optimization method of buoyancy configuration can greatly improve the vortex-induced fatigue performance of the riser system.

Key words: deepwater, drilling riser, genetic algorithm, intelligent optimization, vortex-induced fatigue

CLC Number:

TE52

LIU Xiuquan, JI Jingqi, ZHENG Jian, WANG Xianglei, CHEN Guoming, ZHANG Hao. Intelligent Optimization of Buoyancy Configuration for Deepwater Drilling Riser System Based on Vortex-induced Vibration Suppression[J]. Journal of Mechanical Engineering, 2019, 55(4): 164-171.

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