What question did this study set out to answer?

To analyze the coupled static and dynamic mechanical behavior of deepwater drilling riser systems, tensioners, and floating platforms using a three-dimensional multibody system dynamics approach.

October 9, 2020Petroleum ScienceOpen Access

Mechanical analysis of deepwater drilling riser system based on multibody system dynamics

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Authors

XLXiuquan LiuChina University of Petroleum, Beijing HSHexiang SunHenan Agricultural University MYMeng-Ru YuChina University of Petroleum, East China

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Implication

Dynamic simulation study reveals tensioners suppress deepwater riser deformation during platform motions, indicating non-negligible stress impacts from combined heave, roll, and pitch.

Key Points

To analyze the coupled static and dynamic mechanical behavior of deepwater drilling riser systems, tensioners, and floating platforms using a three-dimensional multibody system dynamics approach.
Developed a three-dimensional multibody dynamic simulation program modeling the integrated drilling riser, tensioner system, and floating platform.
Evaluated riser static displacement and dynamic responses across individual platform degrees of freedom, including surge, sway, heave, roll, and pitch.
Tensioners effectively suppress both static and dynamic riser displacements during platform surge and sway motions.
Platform heave motion triggers uniform axial vibrations, whereas roll and pitch motions induce lateral vibrations along the riser pipe.
Stress amplitudes from heave, roll, and pitch motions are smaller than those from surge and sway motions, but remain structurally non-negligible.

Cite This Study

Liu et al. (2020) studied this question.

synapsesocial.com/papers/69d91c33ccb0bba5a56841d2 https://doi.org/10.1007/s12182-020-00506-1

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Implication

Dynamic simulation study reveals tensioners suppress deepwater riser deformation during platform motions, indicating non-negligible stress impacts from combined heave, roll, and pitch.

Mechanical analysis of deepwater drilling riser system based on multibody system dynamics

Discussion

Member takes

Implication

Key Points

Cite This Study

Mechanical analysis of deepwater drilling riser system based on multibody system dynamics

Discussion

Member takes

Implication

Key Points

Cite This Study

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