This paper established a three-dimensional model of the stern of a heavy-lift ship using PATRAN.In this paper,the simulation of three states of ship floating,ballast and full load generated the hull deformation data under each state.It provides the corresponding vertical offset of the bearing support position under each state.The analysis results provide an example of incorporating hull deformation factors in subsequent alignment design.The calculation results show that the maximum relative vertical offset of the bearing under floating,ballast and pressed-up states are 0.223 mm,0.718 mm and 2.180 mm,respectively.The relative offset of the bearing support position under the pressed-up state of the ship is the largest,indicating that the deformation of the ship's hull under the pressed-up state has the most influence on the shafting.
hull deformationPATRANvertical offset of bearingsshafting alignment
NETL
NSTL
万方数据
