Abstract:
Objective This paper seeks to improve the collision capability of the light hull structure of a certain type of hovercraft in the process of mooring or frequent berthing at the port.
Method A fender and local hull finite element model is established in ABAQUS, and the nonlinear finite element method is used to carry out collision dynamics analysis between the hull without a fender, the hull equipped with a rubber fender and the hull with optimized structure supporting fenders and fender materials.
Results The optimized structure can increase the energy absorption ratio of the rubber fender by about 7%, while the composite fender can increase the energy absorption ratio by about 13% based on a weight reduction of about 50% compared with the rubber fender.
Conclusions According to the structural characteristics of the target hovercraft, the optimal design scheme of structure supporting fenders and composite fender is proposed, which greatly improves the collision capability of the hull structure with a rubber fender compared with before optimization, thereby providing valuable references for the fender design of similar light ship types.
下载: