摘要：Pipeline maintenance technology based on pipeline intelligent plugging robot (PIPR) has become an effective method for failure accident prevention of high-pressure subsea oil and gas pipelines. However, during the plugging operation, the vortexes and pressure fluctuation are presented under turbulent flow field excitation, which may lead to vortex-induced vibration and failure of the plugging operation. Therefore, in order to ensure the reliability of pipeline plugging, the vibration characteristics are analyzed using numerical simulation, providing guidance on the structural optimization of PIPR鈥檚 end face. Firstly, the flow field characteristics under different PIPR鈥檚 end faces are investigated. Secondly, an experimental scheme is designed based on Latin Hypercube Sampling Design (LHSD) optimized by greedy strategy. A mathematical model of the end face鈥檚 parameters and pressure gradient is established using a back propagation (BP) neural network. Then, an improved whale optimization algorithm (IWOA) is proposed to optimize the end face鈥檚 parameters to minimize the pressure gradient of the flow field. Finally, the experimental study is performed to observe the turbulent flow field and pressure fluctuation to validate the optimization results. The results demonstrate that the PIPR鈥檚 end face has a great influence on the vortex-induced vibration response. After structural optimization, the average pressure gradient of the optimal PIPR鈥檚 end face has decreased by 84.69% and 54.55% before and after the plugging process, compared to the original end face. This study can provide a reference for pipeline plugging operations, which is significant for preventing pipeline failure accidents. 漏 2024 by the authors.

ISSN号：2076-3417

卷、期、页：卷14期14

发表日期：2024-07-01

影响因子：0.000000

期刊分区（SCI为中科院分区）：四区

收录情况：EI（工程索引）

发表期刊名称：Applied Sciences (Switzerland)

参与作者：Wu, Tingting,Li, Lijian,Li, Shuai

通讯作者：苗兴园

第一作者：赵弘

论文类型：期刊论文

论文概要：Wu, Tingting,苗兴园,赵弘,Li, Lijian,Li, Shuai，Vibration Characteristics and Structural Optimization of Pipeline Intelligent Plugging Robot under Turbulent Flow Field Excitation，Applied Sciences (Switzerland)，2024，卷14期14

论文题目：Vibration Characteristics and Structural Optimization of Pipeline Intelligent Plugging Robot under Turbulent Flow Field Excitation