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http://dx.doi.org/10.1016/j.ijnaoe.2020.03.009

Reaction force of ship stern bearing in hull large deformation based on stochastic theory  

Zhang, Sheng-dong (College of Civil Engineering and Mechanics, Xiangtan University)
Long, Zhi-lin (College of Civil Engineering and Mechanics, Xiangtan University)
Yang, Xiu-ying (Jiujiang University)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.12, no.1, 2020 , pp. 723-732 More about this Journal
Abstract
A theoretical calculation model for ship stern bearings with large hull deformation is established and validated theoretically and experimentally. A hull simulation model is established to calculate hull deformations corresponding to the reaction force of stern bearings under multi-factor and multi-operating conditions. The results show that in the condition of wave load, hull deformation shows randomness; the aft stern tube bearing load obeys the Gaussian distribution and its value increases significantly compared with the load under static, and the probability of aft stern tube bearing load greater than 1 is 65.7%. The influence laws and levels between hull deformation and bearing reaction force are revealed, and suggestions for ship stern bearing specifications are proffered accordingly.
Keywords
Hull large deformation; Reaction force of ship stern bearing; Finite element method; Wave load;
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