Results 141 to 150 of about 134,603 (177)

Dynamic analysis of umbilical cable under interference with riser

Ships and Offshore Structures, 2018
In 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, Dapeng Zhang, Keqiang Zhu, Tianyu Zhang   +3 more
openaire   +1 more source

Stress analysis model for un-bonded umbilical cables

Ocean Systems Engineering, 2013
For 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, Shixiao Fu, Leijian Song, Qian Zhong, Xiaoping Huang   +4 more
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A study on hovering motion of the underwater vehicle with umbilical cable

Ocean Engineering, 2017
Abstract 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, Hyeung-Sik Choi, Jinil Kang, Dae-Hyeong Ji, Sang-Ki Jeong   +4 more
openaire   +1 more source

Finite Element Analysis of Umbilical Cables Anchoring Systems

Volume 5A: Pipelines, Risers, and Subsea Systems, 2017
The 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, Fernando Geremias Toni, Heloísa Guedes Mendonça, Clóvis de Arruda Martins, Rafael Giovane Morini, Rafael Loureiro Tanaka   +5 more
openaire   +1 more source

Dynamic Analysis of Umbilical Cables for Maglev Vibration Isolation Systems

AIAA Journal, 2019
Umbilical cables are the only paths that transmit vibration from the base to the upper platform in a maglev vibration isolation platform.
Qianqian Wu, Bilong Liu, Ning Cui, Honghao Yue, Rongqiang Liu   +4 more
openaire   +1 more source

Design and installation of subsea cable, pipeline and umbilical crossing interfaces

Engineering Failure Analysis, 2017
Abstract Deterioration of subsea cable, pipeline and umbilical crossings often occur due to relative movement between the crossing members. Any crossing design should aim to achieve a sound, fit for purpose solution that will be maintenance free over the crossing life.
Reda, Ahmed, Howard, Ian, Forbes, Gareth, Sultan, I., McKee, Kristoffer   +4 more
openaire   +2 more sources

Choice of Umbilical Cable for Submersibles - Footprint Optimization

Offshore Technology Conference, 1982
Abstract 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
openaire   +1 more source

Accumulated Plastic Strain Evaluation of Steel Tube for Umbilical Cables

Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 2008
This paper presents the tests performed for the qualification of the level of accumulated plastic strain (APS) to be respected by manufacturing and installation of SAF 2507 steel tube umbilicals. The manufacturing and installation processes for steel tube umbilicals are carried out through repetitive cycles of coiling and uncoiling the tubes or ...
Marcelo Corac¸a dos Santos, Rosianita Balena, Fernando de Paula, Matt Smith   +3 more
openaire   +1 more source

On the motions of the underwater remotely operated vehicle with the umbilical cable effect

Ocean Engineering, 2007
Abstract In this paper, a hydrodynamic model is developed to simulate the six degrees of freedom motions of the underwater remotely operated vehicle (ROV) including the umbilical cable effect. The corresponding hydrodynamic forces on the underwater vehicle are obtained by the planar motion mechanism test technique.
Ming-Chung Fang, Chang-Shang Hou, Jhih-Hong Luo   +2 more
openaire   +1 more source

Passive damping to attenuate snap loading on a ROV umbilical cable

Proceedings of OCEANS '93, 2002
Summary form only given. Snap loading of the umbilical cable connecting a ship to a remotely operated vehicle (ROV) and its cage is a major problem when the ROV system is operating in rough sea conditions. Snap loading is the instantaneous, high magnitude, tensile loading of a cable.
R. Driscoll, L. Iggins
openaire   +1 more source