Topology optimization of topside web frame of bulk carriers
The design of the topside web frame of the bulk carrier is mainly based on the experience of the mother ship and the engineer,aiming at the lightest weight of the topside web frame,and the topology optimization based on stress con-straints is carried out with reference to the stress results of the original design.Based on the original design scheme,the face plate,tripping bracket and buckling stiffeners on the web frame were removed,and the stress with fine mesh was obtained as the stress constraint of topology optimization.Topology optimization for individual web frame and topology optimization for all web frames in the cargo hold were carried out.Based on the topology optimization results,a new topside web frame is de-signed and a detailed design is carried out,and the coarse mesh and fine mesh analysis of the optimized design are carried out based on the three-cargo-hold finite element analysis.The optimized design results in lighter weight and smaller stress than the original design.The research in this paper can provide a certain reference for the topology optimization of the bulk carri-ers and the design of the top side web frame.
bulk carrier structuretopology optimizationfinite element analysistop side web frame