Results 181 to 190 of about 7,069 (230)
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Cabling umbilical and array layout
2013This chapter discusses the case of dynamic cables and subsea connectors for which the design requirements and specifications posed by marine energy applications are distinctly different from the ones typically applied in the offshore industry. Bespoke solutions are needed in this case as the design of the connection is largely dependent on the device ...
P. Ricci, J. L. Mendia
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Tow/umbilical cable system for Deep Venture I cable burial plow
OCEANS 2000 MTS/IEEE Conference and Exhibition. Conference Proceedings (Cat. No.00CH37158), 2002This paper describes the tow/umbilical cable system used to tow the Deep Venture I cable burial plow. The unique demands of this cable plow, including towing at 3 knots from a work boat rather than a cableship, requires a special solution for the tow/umbilical cable system.
J.P. Kurt +3 more
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A Finite Element Model for Umbilical Cable Crushing Analysis
Volume 5A: Pipeline and Riser Technology, 2015Umbilical cables are essential elements of offshore floating production systems. Due to their complexity, the offshore industry regularly counts on numerical tools to perform design assignments. One of these assignments is to evaluate strains and stresses states in all components due to distinct sets of external loads. The main purpose of this paper is
Caio C. P. Santos +4 more
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Automatic Control and Guidance Method of ROV with Umbilical Cable
IFAC Proceedings Volumes, 2007Abstract For the remotely operated vehicle (ROV) with an umbilical cable, it becomes difficult to guide it to a target as the depth increases. Especially, the vehicle for the working in the deep sea under current disturbance, the control to reach the target is the most important and difficult problem, because the tension of the umbilical cable, which
Ikuo Yamamoto, Yuuzi Terada
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Synchronous clamping control of marine umbilical cable tensioner
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2012The umbilical cable tensioner is a core component of deep-water oil and gas development, and it can lay and recover the umbilical cables to ensure the transmission of communication signals, electric signals or liquid injection. The displacements of tensioner’s clamping hydraulic cylinders, which are not synchronized as the nonlinear electro-hydraulic ...
Wenming Wang +5 more
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Dynamic analysis of umbilical cable under interference with riser
Ships and Offshore Structures, 2018In consideration of the bend moment and torque, the lumped mass method was derived. Based on the lumped mass method, the umbilical cable was discretised into a lumped mass model and the interferenc...
Yong Bai +3 more
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A study on hovering motion of the underwater vehicle with umbilical cable
Ocean Engineering, 2017Abstract The paper presents a new modeling of the behavior of an underwater vehicle (UV) operating in the littoral sea, including the umbilical cable (UC) effect, where we derive a new simulation method of the full equations of the combined rigid body motion of a UV and flexible motion of the UC. In the modeling of flexible UC dynamics, we establish
Mai The Vu +4 more
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Stress analysis model for un-bonded umbilical cables
Ocean Systems Engineering, 2013For the optimization design and strength evaluation of the umbilical cable, the calculation of cross section stress is of great importance and very time consuming. To calculate the cross section stress under combined tension and bending loads, a new integrated analytical model of umbilical cable is presented in this paper.
Xiqia Chen +4 more
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Finite Element Analysis of Umbilical Cables Anchoring Systems
Volume 5A: Pipelines, Risers, and Subsea Systems, 2017The connectors on an umbilical system are critical components that are subjected to high tensile loads. To ensure tension resistance to an umbilical cable connection, its structural elements must be properly anchored to the armor pot. One way to provide that connection is the use of the adhesive properties of an epoxy resin.
Eduardo Ribeiro Malta +5 more
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Choice of Umbilical Cable for Submersibles - Footprint Optimization
Offshore Technology Conference, 1982Abstract The limits of the operational area of a ROV (Remotely Operated Vehicle) are calculated when it is working at a certain water depth. The boundary of the operational area is called the footprint and is depending on the thrust which can be delivered by the submersible, the current velocity, the water depth and
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