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17 December 2020 Time-Domain Structure Analysis of a Typical Semisubmersible Drilling Rig
Qian Ye, Wei-Liang Jin, Yong Bai
Author Affiliations +
Abstract

Ye, Q.; Jin, W.-L., and Bai, Y., 2020. Time-domain structure analysis of a typical semisubmersible drilling rig. In: Liu, X. and Zhao, L. (eds.), Today's Modern Coastal Society: Technical and Sociological Aspects of Coastal Research. Journal of Coastal Research, Special Issue No. 111, pp. 118–123. Coconut Creek (Florida), ISSN 0749-0208.

This paper evaluates time-domain structure analysis approaches of a semisubmersible drilling rig using a nonlinear finite element method. Hydrodynamic random wave loads are calculated by WVTDUT, which was developed by a research group from the Dalian University of Technology. Time-domain structure analysis of a semisubmersible platform is very time consuming; simplified time-domain analysis approaches are therefore proposed to improve efficiency using equivalent time series. Validity of the approach is tested by a concrete example and simulation results are discussed in detail. The work of this paper can lead to a better understanding of structure behavior of a typical semisubmersible platform under characteristic wave loads. Performing structure analyses in time domain increases the accuracy and reliability of structure performance and the present study may be a benchmark study on time-domain structure analysis of a semisubmersible drilling rig.

©Coastal Education and Research Foundation, Inc. 2020
Qian Ye, Wei-Liang Jin, and Yong Bai "Time-Domain Structure Analysis of a Typical Semisubmersible Drilling Rig," Journal of Coastal Research 111(sp1), 118-123, (17 December 2020). https://doi.org/10.2112/JCR-SI111-020.1
Received: 9 March 2020; Accepted: 26 June 2020; Published: 17 December 2020
KEYWORDS
design wave method
Random wave load
semisubmersible platform
time-domain analysis
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