Open AccessAnalytical analysis of fatigue life and wear rate of jack-ups at various stages of their life cycle
Author(s) -
V Anatoliy Aleksandrov,
G. Kryzhevich,
A. Filatov,
Trifon R. Rybalko
Publication year - 2019
Publication title -
trudy krylovskogo gosudarstvennogo naučnogo centra
Language(s) - English
Resource type - Journals
eISSN - 2618-8244
pISSN - 2542-2324
DOI - 10.24937/2542-2324-2019-1-s-i-137-145
Subject(s) - weibull distribution , parametric statistics , structural engineering , modal , residual stress , residual , materials science , forensic engineering , engineering , computer science , mathematics , composite material , statistics , algorithm
This paper gives modal and structural calculations of jack-up rigs at operational and transportation stages, as well as more accurate structural calculations for jack-up supports, as well as effective stress ranges at hot points. Based on these results, the paper gives a simplified fatigue strength calculation for jack-up support, by means of Weibull bi-parametric distribution. It also compares fatigue damage accumulation rates of jack-up at different stages of their life cycles, as well as predicts its residual lifetime.