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Chao Li, Gang Wang, Kaiyun Chen, Peng Jia, Liquan Wang, Xiangyu Wang and Feihong Yun
In this paper, a cleaning robot is designed to remove the marine fouling attached to a marine steel pile. In the following study, in order to analyse the process of cleaning marine fouling attached to a rough substrate, the barnacle is taken as a typical...
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Kai Xu, Gang Wang, Liquan Wang, Feihong Yun, Wenhao Sun, Xiangyu Wang and Xi Chen
Jet pump efficiency heavily relies on the geometrical parameters of the pump design and parameter global optimization in the full variable space is still a big challenge. This paper proposed a global optimization method for annular jet pump design combin...
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Weifeng Liu, Feihong Yun, Gang Wang, Liquan Wang and Shaoming Yao
As a key piece of equipment in underwater production system, a reliability study of deep-sea connectors has important theoretical significance and engineering value for increasing fault-free operation time, improving engineering safety, and reducing main...
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Zhenyu Li, Gang Wang, Shaoming Yao, Feihong Yun, Peng Jia, Chao Li and Liquan Wang
To predict the sealing performance of the subsea pipeline compression connector, a semi-analytical method is proposed and verified. The leakage condition is obtained as a function of the minimum radial deflection. The semi-analytical method consists of t...
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Ming Ju, Xiaodong Xing, Liquan Wang, Feihong Yun, Xiangyu Wang and Hongqian Liao
During the reeling process of the reel-lay method, the pipe will be subjected to combined loading of tension and bending. Excessive ovalization of the pipe will affect the structural performance and even lead to structural instability of the pipe. In thi...
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Liquan Wang, Ming Ju, Xiaodong Xing, Feihong Yun and Xiangyu Wang
The dynamic behavior of the flexible pipeline during deepwater Flex-lay directly determines the structures of laying facilities and the actual installation process. A coupled dynamic model considering the effects of different factors was established in t...
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Chao Li, Gang Wang, Kaiyun Chen, Feihong Yun and Liquan Wang
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Honghai Wang, Fujun Wen, Guiqian Liu, Peng Jia, Feihong Yun, Liquan Wang, Yongchao Wang and Chao Li
To bridge the gap that exists in the key equipment of the new subsea production control system, the all-electric subsea gate valve actuator, and exploit subsea oil and gas resources with high reliability and safety while saving energy, this paper propose...
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Pengpeng Wang, Haixia Gong, Liquan Wang, Feihong Yun, Yibo Nan, Ming Ju, Chao Li, Honghai Wang and Kai Xu
A deep-water bolt flange automatic connection tool plays a very important role in the process of offshore oil exploitation and transportation. In the connection process, the alignment error of bolts and nuts is the key factor to ensure the connection pro...
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Kai Xu, Gang Wang, Luyao Zhang, Liquan Wang, Feihong Yun, Wenhao Sun, Xiangyu Wang and Xi Chen
In this study, an annular jet pump optimization method is proposed based on an RBF(Radial Basis Function) neural network model and NSGA-II(Non-Dominated Sorting Genetic Algorithm) optimization algorithm to improve the hydraulic performance of the annular...
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Honghai Wang, Peng Jia, Liquan Wang, Feihong Yun, Gang Wang, Aiguo Zhang, Min Xu and Xiangyu Wang
The all-electric subsea gate valve actuator is one of the critical components of the all-electric subsea production control system. To bridge the gap of the low-power holding mechanism in the all-electric subsea gate valve actuator of the subsea producti...
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Shoubo Shang, Xiangyu Wang, Qingnan Han, Peng Jia, Feihong Yun, Jing Wen, Chao Li, Ming Ju and Liquan Wang
This paper proposes a version of the deep-sea environment simulated test system for subsea control modules to solve the problem of incomplete testing systems for electro-hydraulic subsea control modules. Based on the subsea control module test requiremen...
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Zhendong Zhu, Jiahao Zhang, Feihong Wang, Wenhui Feng, Leping Dang and Hongyuan Wei
The physical properties of sodium cocoyl glycinate (SCG) and the synergistic effects within the SCG/CAPB complex system were investigated using visible?ultraviolet spectrophotometry and a surface tension meter. Analysis of the synergistic parameters of t...
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Chao Li, Nan Pang, Kai Xu, Qingling Geng, Xiangyu Wang, Feihong Yun and Lei Gao
In order to clean up marine fouling attached to marine steel pile, this paper proposed an innovative configuration scheme of the marine steel pile cleaning equipment by the scraping method and its telescopic mechanism by applying a multi-cylinder synchro...
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Dong Liu, Feihong Yun, Kefeng Jiao, Liquan Wang, Zheping Yan, Peng Jia, Xiangyu Wang, Weifeng Liu, Xiaoquan Hao and Xiujun Xu
Underwater oil and gas pipelines are prone to alignment differences and angle offsets during docking, and the spherical flange connector can address this problem. Its main function is to enable compensation of the different angles of the pipeline during ...
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Feihong Yun, Dong Liu, Xiujun Xu, Kefeng Jiao, Xiaoquan Hao, Liquan Wang, Zheping Yan, Peng Jia, Xiangyu Wang and Bin Liang
Taking a subsea collet connector as an example, the contact characteristics of the sealing structure of the subsea connector under thermal?structural coupling were studied. Considering the heat transfer problem of the subsea connector in deep water, the ...
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Kefeng Jiao, Feihong Yun, Zheping Yan, Gang Wang, Peng Jia, Liquan Wang, Dong Liu and Xiaoquan Hao
The sealing performance of the rubber packer is of vital importance for the subsea retractable connector, and the cross-sectional shape of the rubber packer is one of the most important factors affecting it. The compression distance of the rubber packer ...
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Nan Pang, Peng Jia, Peilin Liu, Feng Yin, Lei Zhou, Liquan Wang, Feihong Yun and Xiangyu Wang
The reliability of many engineering systems (such as offshore and subsea equipment, aerospace equipment, energy production equipment, etc.) is very important, but due to a lack of sufficient failure data, their reliability is difficult to accurately eval...
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Feihong Yun, Gang Wang, Zheping Yan, Peng Jia, Xiujun Xu, Liquan Wang, Haiting Sun and Weifeng Liu
The contact mechanics model of the metal lens-type sealing gasket is established on the basis of Hertz theory on the macroscopical scale in this paper. The relationship among sealing width, contact pressure, and preload is solved. Based on the structural...
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