Cross-flow vortex-induced vibration of a flexible riser transporting an internal flow from subcritical to supercritical
Sign Up to like & getrecommendations! Published in 2017 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2017.04.039
Abstract: Abstract This study aims to model and explore the IFE (Internal Flow Effect) on the CF (Cross-Flow) VIV (Vortex-Induced Vibration) of a flexible riser transporting an axial single-phase internal flow. The simulation model employs the… read more here.
Keywords: internal flow; vibration; flexible riser; subcritical supercritical ... See more keywords
Flexible riser replacement operation based on advanced virtual prototyping
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DOI: 10.1016/j.oceaneng.2020.107502
Abstract: Abstract As a critical campaign in the offshore oil and gas engineering, flexible riser replacements involve complex operations that need to be optimized and detailed to factor in trends in the industry. Since it allows… read more here.
Keywords: virtual prototyping; riser replacement; operation; riser ... See more keywords
On the response and prediction of multi-layered flexible riser under combined load conditions
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DOI: 10.1108/ec-10-2018-0493
Abstract: Purpose The internal force is more complicated in a combined load case than in a single load case, and the influence of the combined load on the stress cannot be neglected. The purpose of this… read more here.
Keywords: combined load; flexible riser; tension; prediction ... See more keywords
Vibration Suppression of a Flexible Riser by Boundary Iterative Learning Control
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DOI: 10.1109/access.2019.2939225
Abstract: This paper studies the vibration suppression problem of nonlinear flexible riser systems subjected to external disturbances. For suppressing the vibration and improving the control precision, a novel joint control method which includes boundary control and… read more here.
Keywords: control; learning control; flexible riser; iterative learning ... See more keywords
PDE Based Adaptive Control of Flexible Riser System With Input Backlash and State Constraints
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2022.3149290
Abstract: In this paper, a class of flexible riser systems modeled by partial differential equations (PDEs) with the backlash is considered. The backlash is formulated as the addition of a linear input and a interference-like term,… read more here.
Keywords: flexible riser; riser; riser system; backlash ... See more keywords
Boundary Iterative Learning Control of a Flexible Riser With Input Saturation and Output Constraint
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Systems, Man, and Cybernetics: Systems"
DOI: 10.1109/tsmc.2022.3149283
Abstract: For tackling the vibration suppression problem for a flexible riser system with external disturbance, input saturation, and output constraint, this article is constructed. A boundary iterative learning control is constructed together with Lyapunov’s theory and… read more here.
Keywords: flexible riser; output constraint; input saturation; control ... See more keywords