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Keywords: stiffness
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Proceedings Papers

Paper presented at the SNAME 24th Offshore Symposium, February 20, 2019
Paper Number: SNAME-TOS-2019-004
... are investigated to observe the corresponding effects on interlink angles. houston stiffness interlink angle wave height th offshore symposium ipb interlink angle upstream oil & gas chain interlink angle texas texas section mooring system underwater chain stopper system proceedings fairlead...
Proceedings Papers

Paper presented at the SNAME 24th Offshore Symposium, February 20, 2019
Paper Number: SNAME-TOS-2019-005
... Recent mooring research indicates that fiber ropes with higher strength and higher stiffness would benefit floating offshore platforms in water depths beyond 2000 meters in terms of reduced offset and reduced weight in comparison with polyester rope mooring. More advanced fibers with high...
Proceedings Papers

Paper presented at the SNAME 24th Offshore Symposium, February 20, 2019
Paper Number: SNAME-TOS-2019-011
... system american bureau th offshore symposium assessment stiffness fender freight & logistics services ASSESSMENT OF NEARSHORE FSRU/FLNG MOORING AMITAVA GUHA AMERICAN BUREAU OF SHIPPING SUE WANG AMERICAN BUREAU OF SHIPPING Proceedings of the 24th Offshore Symposium, February 20th, 2019...
Proceedings Papers

Paper presented at the SNAME 23rd Offshore Symposium, February 14, 2018
Paper Number: SNAME-TOS-2018-016
... minimal environmental load. natural period characteristic lms model test th 2018 houston subsea system calculation passive air chamber upstream oil & gas pencil column air chamber proceedings stiffness rd offshore symposium solver texas texas section naval architect...
Proceedings Papers

Paper presented at the SNAME 23rd Offshore Symposium, February 14, 2018
Paper Number: SNAME-TOS-2018-027
... section naval architect internal force transfered international conference subsea system proceedings col operation operation stiffness houston upstream oil & gas 3-STAGE APPROACH FOR OPTIMIZING COMING OFF LOCATION OPERATIONS M.J. DOWDY ROWAN COMPANIES PLC J.H. VAZQUEZ 3DENT TECHNOLOGY...
Proceedings Papers

Paper presented at the SNAME 23rd Offshore Symposium, February 14, 2018
Paper Number: SNAME-TOS-2018-026
... to the hull as a combination of a vertical couple (i.e., differential chord load on the pinions) and a horizontal couple (i.e., upper and lower guide loads). The magnitude of the loads for a given amount of jacking on a given leg is a function of the leg's effective stiffness, which varies with water depth...
Proceedings Papers

Paper presented at the SNAME 22nd Offshore Symposium, February 2, 2017
Paper Number: SNAME-TOS-2017-002
..., and encourages due diligence in selecting FE solvers and parameters for systems involving friction. texas texas section solver enforcement stiffness proceedings criteria transition naval architect nd offshore symposium friction algorithm houston fe solver friction force displacement algorithm...
Proceedings Papers

Paper presented at the SNAME 22nd Offshore Symposium, February 2, 2017
Paper Number: SNAME-TOS-2017-003
... and induced stresses at the brace to hull connection. To handle the high bending moment, the brace wall thickness must be increased, which results in a stiffer connection. Because the racking deflection is controlled by the deck box, and not the stiffness of the braces, the magnitude of this deflection...
Proceedings Papers

Paper presented at the SNAME 21st Offshore Symposium, February 16, 2016
Paper Number: SNAME-TOS-2016-010
... (EOC) and owned and operated by LLOG Exploration LLC. In the design and analysis of the mooring system, one major challenge is modeling polyester rope change-in-length characteristics. Conventional method to envelope maximum vessel offset and maximum line tension using lower and upper bound stiffness...
Proceedings Papers

Paper presented at the SNAME 21st Offshore Symposium, February 16, 2016
Paper Number: SNAME-TOS-2016-027
...). It is, therefore, the objective of this paper to illustrate the relationship of DSV and impact load, while answering the question as to whether or not this relationship is independent of oscillation amplitude or wave period. For simplicity, the analyses focus on a single water depth, soil stiffness and direction...
Proceedings Papers

Paper presented at the SNAME 19th Offshore Symposium, February 6, 2014
Paper Number: SNAME-TOS-2014-010
... is generally less reliable and model testing has become an important and widely accepted design tool to derive reliable sea fastening loads for tie down designs. However, tie down stiffness in prototype-scale is very difficult to model and scale properly in model tests. The measured results cannot be directly...
Proceedings Papers

Paper presented at the SNAME 19th Offshore Symposium, February 6, 2014
Paper Number: SNAME-TOS-2014-025
... to a depth between 500 to 1000 feet. Static and dynamic motion analyses of these risers reveal conflicting design requirements. Low stiffness and light weight help to decrease stress and moment reaction on the FLNG vessel and riser, while associated large motions cause problem with interference between...
Proceedings Papers

Paper presented at the SNAME 19th Offshore Symposium, February 6, 2014
Paper Number: SNAME-TOS-2014-027
... presents some of the new uses that are being made of ropes and the trends for the near future. To illustrate one such use an application in a back-up tether system for Free Standing Hybrid Risers (FSHR) is described in a bit more detail. th offshore symposium mooring system application stiffness...
Proceedings Papers

Paper presented at the SNAME 16th Offshore Symposium, February 9, 2010
Paper Number: SNAME-TOS-2010-007
... In this paper an introduction is given into the rising offshore renewable energy market. It s pointed out that dynamic stiffness is a key requirement for mooring ropes in these systems. Axial stiffness is explained, as well as the difference between static and dynamic load regime, from the material morphology...
Proceedings Papers

Paper presented at the SNAME 16th Offshore Symposium, February 9, 2010
Paper Number: SNAME-TOS-2010-009
... natural periods In addition to the reduced weight/volume ratio, the stiffness properties of the pennants will affect the natural period of the hoisting system including pennants. The natural period of the hoisting system is an important parameter, since this parameter determines the dynamic amplification...
Proceedings Papers

Paper presented at the SNAME 13th Offshore Symposium, February 24, 2004
Paper Number: SNAME-TOS-2004-13-007
... on the desired heave natural period. Conventional TLPs in moderate water depths are usually designed with a heave natural period of 4.0 sec. In ultra deepwater it is highly desirable to increase the heave natural period to reduce tendon weight. (Increasing the heave natural period reduces the stiffness in heave...

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