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Extreme jack-up response: Simulation and nonlinear analysis methods

Journal Article · · Journal of Offshore Mechanics and Arctic Engineering
DOI:https://doi.org/10.1115/1.2828817· OSTI ID:277531
;  [1]
  1. Stanford Univ., CA (United States). Civil Engineering Dept.

The nonlinear dynamic response of a jack-up structure under random wave loads is considered. For a simplified jack-up model, average behavior and variability in extreme forces and responses are found from simulation over many 6-h seastates. Weibull and Hermite analytical models of response extremes are also presented and evaluated. These models use shorter, less expensive simulations to estimate a limited number of response statistics, such as moments or parameters of the response peak distribution, and fit analytical models to estimate global extremes. Necessary simulation lengths are established both for direct simulation of extremes, and for analytical extreme models.

Sponsoring Organization:
USDOE
OSTI ID:
277531
Journal Information:
Journal of Offshore Mechanics and Arctic Engineering, Journal Name: Journal of Offshore Mechanics and Arctic Engineering Journal Issue: 2 Vol. 118; ISSN 0892-7219; ISSN JMOEEX
Country of Publication:
United States
Language:
English

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