Results 41 to 50 of about 1,052 (146)
Control system of ROV for underwater safety inspection and operation
Zhongguo Jianchuan Yanjiu, 2018 [Objectives] In order to achieve safety inspections for surface attachments on hulls, dams and underwater steel structures according to the requirements of removing attachments,a new Remotely Operated Vehicle(ROV) equipped with cables for underwater ...
ZHANG Guangyi +4 more
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Isogeometric contact analysis in subsea umbilical and power cables
Marine StructuresSubsea umbilical and power cables contain a large number of contact interfaces between different geometries and materials. These complex interactions rise significant challenges for accurately considering contact surface properties by using traditional analytical solutions or finite element methods.
Dai, Tianjiao +6 more
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On-Bottom Stability of Umbilicals and Power Cables for Offshore Wind Applications
Energies, 2019 With the increase in offshore wind farms, the demands for umbilicals and power cables have increased. The on-bottom stability of umbilicals and power cables under the combined wave and current loading is the most challenging design issue, due to their ...
Guomin Ji, Muk Chen Ong
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International Journal of Naval Architecture and Ocean EngineeringThe currently defined Safe Working Load (SWL) of the U-bolt has been determined excessively conservatively. To address this issue, this study conducted structural tests and numerical analysis on round type U-bolts of various sizes.
Minsung Chun +8 more
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DRU‐HVDC for offshore wind power transmission: A review
IET Renewable Power GenerationThe rapid development of offshore wind farms (OWFs) calls for economical and reliable power transmission technology. This review paper focuses on the diode‐rectifier‐unit based high voltage direct current (DRU‐HVDC) transmission systems.
Lujie Yu, Ziyu Fu, Rui Li, Jiebei Zhu
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DYNAMICS OF AN UMBILICAL CABLE FOR UNDERGROUND BORE-WELL APPLICATIONS
International Journal of Electronics Signals and Systems, 2012 A general model for an umbilical cable for underground bore-well applications is considered. The response of one-degree-of-freedom, nonlinear system under external excitation forces and the effect of the parameters 2, β and f on the excited system are investigated.
KANNAN SANKAR, JAYA KUMAR. V.K
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Light-weight Umbilical Cable Design
Guangtongxin yanjiu【Objective】The umbilical cable is one of the core pieces of equipment for marine scientific exploration. It typically uses high-strength steel wires as the load-bearing elements.
NIU Xuechao +7 more
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Remediation Device and Methods for Hydrate Blockage
Shiyou jixie, 2016 The deepwater oil and gas transportation pipelines are prone to generating solid hydrate,causing pipeline blockage issue.To address the hydrate blockage,a hydrate blockage remediation device prototype has been developed and tested for performance ...
Pang Weixin +3 more
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Kongzhi Yu Xinxi Jishu, 2018 It developed an innovative heave compensation system (HCS) for remotely control vehicles (ROV), which changes the traditional fixed mechanical joint between shaft of drum and winches into a movable mechanical connection through many gears driven by ...
YAN Yun, ZHU Yinggu, LUO Lingbo
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Motion Characteristics Analysis of the Wave Glider Under Wave and Current Coupling
Journal of Marine Science and EngineeringThe wave glider is an unmanned marine observation platform propelled by wave energy. Accurate prediction of its motion performance is crucial for structural design and motion control. This paper presents a four-degree-of-freedom nonlinear coupled dynamic
Paixia Li, Liangtian Gu, Liucun Zhu
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