International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
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Reaction force of ship stern bearing in hull large deformation based on stochastic theory

  • Received : 2019.04.01
  • Accepted : 2020.03.30
  • Published : 2020.12.31
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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

Acknowledgement

This work was supported by the Project Funded by General Project of Key R & D Program of Jiangxi Provincial Department of Science and Technology (Joint Funding) (No. 20192BBEL50028).

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