Research Papers: Piper and Riser Technology

Dynamic Effect of a Flexible Riser in a Fully Connected Semisubmersible Drilling Rig Using the Absolute Nodal Coordinate Formulation

[+] Author and Article Information
Seung-Ho Ham

Department of Naval Architecture and
Ocean Engineering,
Seoul National University,
1 Gwanak-ro, Gwanak-gu,
Seoul 08826, South Korea

Myung-Il Roh

Department of Naval Architecture and
Ocean Engineering;
Research Institute of
Marine Systems Engineering,
Seoul National University,
1 Gwanak-ro, Gwanak-gu,
Seoul 08826, South Korea
e-mail: miroh@snu.ac.kr

Jeong-Woo Hong

Offshore Engineering Research Department,
Advance Technology Research Institute,
Hyundai Heavy Industries Co., Ltd.,
400, Bangeojinsunhwan-doro, Dong-gu,
Ulsan 44114, South Korea

1Corresponding author.

Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received November 30, 2016; final manuscript received May 11, 2017; published online July 6, 2017. Assoc. Editor: Robert Seah.

J. Offshore Mech. Arct. Eng 139(5), 051705 (Jul 06, 2017) (10 pages) Paper No: OMAE-16-1153; doi: 10.1115/1.4037084 History: Received November 30, 2016; Revised May 11, 2017

The motion of a semisubmersible drilling rig must be checked in advance to satisfy the safety criteria of the rig. However, the complexity of the rig's connections makes it difficult to analyze the rig motion during the drilling operation because it is connected to the seabed by the blow-out preventer (BOP). The rig's connections consist of several pieces of risers, a telescopic joint, and a riser tensioner system. Also, from a macroscopic perspective, the risers should be regarded as flexible threads. Therefore, this study developed a rig motion analysis program considering the deformable effects of flexible risers and the full connectivity of the drilling rig. Flexible multibody dynamics (FMBD) based on the absolute nodal coordinate formulation (ANCF) is adapted for the mathematical modeling of the risers and joints. Acting as an external disturbance, a hydrodynamic force and current force are exerted on the drilling rig and the risers, respectively. The drilling rig is fully modeled including the riser tensioner system, telescopic joint, flexible risers, and upper and lower flex joints. The motion analysis with and without connections was fulfilled to verify the effect of connectivity. Moreover, we observed that the movement of the drilling rig increases as the current speed increases. Finally, the simulation is successfully applied to check the motions and tensions of the drilling rig in moderate and storm conditions.

Copyright © 2017 by ASME
Your Session has timed out. Please sign back in to continue.


Santillan, S. T. , Virgin, L. N. , and Plaut, R. H. , 2010, “ Static and Dynamic Behavior of Highly Deformed Risers and Pipelines,” ASME J. Offshore Mech. Arct. Eng., 132(2), p. 021401. [CrossRef]
Garrett, D. L. , 2005, “ Coupled Analysis of Floating Production Systems,” Ocean Eng., 32(7), pp. 802–816. [CrossRef]
Low, Y. M. , and Langley, R. S. , 2008, “ A Hybrid Time/Frequency Domain Approach for Efficient Coupled Analysis of Vessel/Mooring/Riser Dynamics,” Ocean Eng., 35, pp. 433–446. [CrossRef]
Yang, M. , Teng, B. , Ning, D. , and Shi, Z. , 2012, “ Coupled Dynamic Analysis for Wave Interaction With a Truss Spar and Its Mooring Line/Riser System in Time Domain,” Ocean Eng., 39, pp. 72–87. [CrossRef]
Eom, T. S. , Kim, M. H. , Bae, Y. H. , and Cifuentes, C. , 2014, “ Local Dynamic Buckling of FPSO Steel Catenary Riser by Coupled Time-Domain Simulations,” Ocean Syst. Eng., 4(3), pp. 215–241. [CrossRef]
Park, K. P. , 2011, “ The Flexible Multibody Dynamics of a Floating Offshore Wind Turbine in Marine Operations,” Ph.D. thesis, Seoul National University, Seoul, South Korea, pp. 106–151. https://www.researchgate.net/publication/309660232_The_flexible_multibody_dynamics_of_a_floating_offshore_wind_turbine_in_marine_operations
Hong, J. W. , Roh, M. I. , Ham, S. H. , and Ha, S. , 2016, “ Dynamic Simulation of Subsea Equipment Installation Using an Offshore Support Vessel Based on Flexible Multibody System Dynamics,” J. Mar. Sci. Technol. (Taiwan), 24(4), pp. 807–821.
Lee, H. W. , Roh, M. I. , Ham, S. H. , and Ha, S. , 2015, “ Dynamic Simulation of the Wireline Riser Tensioner System for a Mobile Offshore Drilling Unit Based on Multibody System Dynamics,” Ocean Eng., 106, pp. 485–495. [CrossRef]
Bauchau, O. A. , 2011, Flexible Multibody Dynamics, Springer, New York, pp. 569–579.
Berzeri, M. , and Shabana, A. A. , 2000, “ Development of Simple Models for the Elastic Forces in the Absolute Nodal Co-Ordinate Formulation,” J. Sound Vib., 235(4), pp. 539–565. [CrossRef]
Shabana, A. A. , 2005, Dynamics of Multibody Systems, Cambridge University Press, New York, pp. 309–343.
Nikravesh, P. E. , 1988, Computer Aided Analysis of Mechanical System, Prentice Hall, Upper Saddle River, NJ, pp. 77–101.
Ham, S. H. , Roh, M. I. , Lee, H. W. , and Ha, S. , 2015, “ Multibody Dynamic Analysis of a Heavy Load Suspended by a Floating Crane With Constraint-Based Wire Rope,” Ocean Eng., 109, pp. 145–160. [CrossRef]
Sugiyama, H. , Escalona, J. L. , and Shabana, A. A. , 2003, “ Formulation of Three-dimensional Joint Constraints Using the Absolute Nodal Coordinates,” Nonlinear Dyn., 31(2), pp. 167–195. [CrossRef]
Chen, J. , Duan, M. , and Tian, K. , 2012, “ Dynamic Response and Fatigue Damage Analysis for Drilling Riser,” International Conference on Mechanical Engineering and Material Science (MEMS), Shanghai, China, Dec. 16–18, pp. 704–707. http://www.atlantis-press.com/php/download_paper.php?id=3841
Haziri, S. , 2011, “ Development of Simulation Model for Virtual Testing and Design of a Riser Tensioner System,” Master thesis, University of Agder, Kristiansand, Norway, pp. 65–76. https://brage.bibsys.no/xmlui/handle/11250/136688
Journée, J. M. J. , and Massie, W. W. , 2001, Offshore Hydrodynamics (Lecture Note), Delft University of Technology, Delft, The Netherlands, Chap. 5.
Coles, S. , 2001, An Introduction to Statistical Modelling of Extreme Values, Springer, New York.
Ham, S. H. , Roh, M. I. , Lee, H. W. , and Hong, J. W. , 2016, “ Multi-Physics Simulation Framework for Design and Production of Ships and Offshore Plants,” International Symposium on Practical Design of Ships and Other Floating Structures (PRADS), Copenhagen, Denmark, Sept. 4–8, pp. 1–6. https://sydlab.snu.ac.kr/xe/index.php?mid=board_MCXi19&order_type=asc&page=20&sort_index=PublicationDate&document_srl=5208


Grahic Jump Location
Fig. 1

Numerical analysis procedure of flexible dynamics system

Grahic Jump Location
Fig. 2

Configurations of the semisubmersible drilling rig connected by risers

Grahic Jump Location
Fig. 3

Bodies and joints of the drilling rig

Grahic Jump Location
Fig. 4

Heave motion with and without connections

Grahic Jump Location
Fig. 5

Horizontal displacement according to current speeds acting on the riser (t = 515 s)

Grahic Jump Location
Fig. 6

Surge motion of the rig due to the riser displacement

Grahic Jump Location
Fig. 7

Motion of the drilling rig in moderate condition

Grahic Jump Location
Fig. 8

Motion of the telescopic joint in moderate condition

Grahic Jump Location
Fig. 9

Force acting on hydraulic and pneumatic cylinder, and tension of wirelines in moderate condition

Grahic Jump Location
Fig. 10

Motion of the drilling rig in storm condition

Grahic Jump Location
Fig. 11

Motion of the telescopic joint in storm condition

Grahic Jump Location
Fig. 12

Force acting on hydraulic and pneumatic cylinder, and tension of wirelines in storm condition



Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In