船舶大分段吊装工装优化设计

Optimum Design of Hoisting Tooling for Largesection of Ship

摘要: 为了提高现有船舶分段吊装吊具的抗弯曲能力以适应船舶分段质量体积越来越大的的趋势，通过分析不同横截面形状的抗弯惯性矩，选择抗弯性能最好的截面形状进行参考。对一款常见的口字形横梁吊具进行合理优化改造，在保证钢材用量不变的前提下，将其截面改造成工字形结构。利用Rhino进行建模并导入Ansys进行分析，经过不同吊点受力分析后，优化后的横梁吊具弯曲变形最多减少0.251 mm，优化率普遍在20%~30%。

Abstract: In order to improve the bending resistance of the existing ship block hoisting spreaders, to adapt to the trend of increasing ship block mass and volume. By analyzing the bending moment of inertia of different cross-sectional shapes, the cross-sectional shape with the best bending performance is selected for reference. A common rectangular beam spreader was reasonably optimized and transformed, and its section was transformed into an I-shaped structure under the premise of the same amount of steel. Use Rhino for modeling, and import the model into Ansys for analysis. After the force analysis of different lifting points, the bending deformation of the optimized beam spreader is reduced by up to 0.251 mm, and the optimization rate is generally 20%~30%.