Optimization Research of Mooring Base of the Ship-Based Helicopter

The problems about the calculation of mooring tension and the layout optimization of mooring base are studied. On the basis of considering the elastic deformation of mooring cables, the compression deformation of tyre is calculated. The relational expressions among the tyre compression deformation, the energy of deformation and external loads are derived. After the coordinate transformation relation between the helicopter and ship is determined, and the displacement calculation model of helicopter is presented, the final mooring tension of the ship-based helicopter is solved according to the advanced energy method. The mooring point coordinate is searched and solved in standard and nonstandard parking positions by the first-order optimization method. Some added constraint conditions are taken into account for optimization. Through the comparison of the relative changing ratio of the position coordinates before and after optimization, the layout scheme that makes the forces of the helicopter body and mooring equipments more reasonable is established.