The Study of Underwater Connector Temperature Test Equipment

Li, Zhigang; Wang, Yu-Chen; Chen, Zhuo; Li, Jun; Li, Yong-Tao; Wang, Liquan

doi:10.1142/9789814759687_0003

Cited by 2 publications

(2 citation statements)

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“…Therefore, sufficient sunlight is an important factor for planting high-yield crops [5]. In order to ensure that the greenhouse has a sufficient sunlight transmission rate and that the crops can receive enough light to increase crop yield and improve economic benefits, it is necessary to regularly clean the greenhouse surface [6].…”

Section: Introductionmentioning

confidence: 99%

Research on Controller of Glass Greenhouse Cleaner Based on PSO-Fuzzy-PID

Xu,

Chen,

et al. 2023

Processes

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When cleaning the surface of a glass greenhouse, the washing machine often encounters slippery tracks or strong winds, in which case the washing machine is very likely to deviate from the axis of the greenhouse. In order to improve the stability and reliability of the glass greenhouse cleaner under different working conditions, this paper studies the controller of the glass greenhouse cleaner and puts forward a fuzzy PID control scheme optimized by the PSO algorithm. Using Adams and Matlab to jointly simulate the machine model, the results show that the particle swarm fuzzy PID controller has the best control effect and can make the cleaner adaptable to a variety of working conditions. The system overshoot was reduced by up to 35.5%, the response time by up to 3 s, and the difference between left and right wheel speeds by up to 0.086 deg/s.

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Section: Introductionmentioning

confidence: 99%

Research on Controller of Glass Greenhouse Cleaner Based on PSO-Fuzzy-PID

Xu,

Chen,

et al. 2023

Processes

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“…At present, offshore oil and gas exploration continues to be more challenging than onshore exploration due to various technical difficulties, such as an unclear understanding of underground oil reserves, installation complications of underwater production equipment, and difficulties in sealing the transportation process of oil and gas [1,2]. As a vital instrument in deep-sea oil exploration, deep-sea connectors are frequently utilized along with jumpers to establish pipeline connections between equipment, connecting various underwater production system devices, and transmitting oil, gas, and other energy sources such as deep-sea hydrate and sediment mixtures [3,4]. These technical challenges create significant obstacles to underwater oil and gas exploration which, if not addressed effectively, can lead to substantial economic losses and irreparable environmental damage, as seen in incidents such as the massive oil spill in the Gulf of Mexico in 2010 [5], the oil spill accident in the Bohai Sea about 38 nautical miles away from the coast of China in 2011 [6], and the oil spill incident in California in 2021 [7].…”

Section: Introductionmentioning

confidence: 99%

Reliability Analysis of the Deep-Sea Horizontal Clamp Connector Based on Multi-Source Information from an Engineering Background

Liu

Yun

Wang

et al. 2023

JMSE

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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 maintenance costs. However, the diverse failure modes of connectors and the lack of high-quality and credible reliability data can lead to biased analysis outcomes. To tackle this problem, this study aims to establish a reliability model for deep-sea horizontal clamp connectors. Based on the actual engineering background, a fault tree model for deep-sea horizontal clamp connectors is developed, and the distribution types of bottom events are analyzed concerning the failure mechanism. To enhance the model’s credibility, a multi-source information approach is employed, combining prior product information, expert experience, and design information to quantitatively solve the reliability probability of the connector. The expert experience is quantified using the fuzzy quantitative analysis method, while the design information is estimated by developing a corrosion prediction model combined with grey theory. Thus, the reliability assessment of deep-sea horizontal clamp connectors is completed. Factory Acceptance Test (FAT) is performed on the improved connectors, and the closed-loop work of reliability analysis is completed.

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The Study of Underwater Connector Temperature Test Equipment

Cited by 2 publications

References 0 publications

Research on Controller of Glass Greenhouse Cleaner Based on PSO-Fuzzy-PID

Research on Controller of Glass Greenhouse Cleaner Based on PSO-Fuzzy-PID

Reliability Analysis of the Deep-Sea Horizontal Clamp Connector Based on Multi-Source Information from an Engineering Background

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