Development and key technologies of fatigue analysis software for ship shafting in ice regions
Affected by the global warming and the melting of Arctic glaciers, the number of ships sailing on polar/ice routes is increasing. The fatigue analysis of propulsion shafting under the excitation of ice load has become a hot technical issue in the design/reconstruction of ships in ice areas. The fatigue analysis and calculation model of ship propulsion shafting under the action of ice load is established, and the method of determining the maximum peak torque of the full speed shaft section ice load, the design of S-N curve and the determination of the linear damage system are proposed. The fatigue analysis process and evaluation criteria of ship shafting in the ice area are given. Based on the joint programming of C # and Matlab, the fatigue analysis software of ship propulsion shafting in the ice area is developed, and the correctness of the software is verified by comparison.