聚脲涂层舷侧板架抗撞性能试验研究

针对船舶舷侧结构抗碰撞问题,开展有无聚脲涂层舷侧板架落锤试验研究。以某型舰船结构为依据建立舷侧板架有限元模型,利用瞬态动力学软件MSC/Dytran对模型进行数值仿真并确定落锤高度及试验工况。在此基础上,制作模型板架进行有无聚脲涂层舷侧板架落锤冲击试验,分别获得有涂层和无涂层舷侧板架在碰撞冲击载荷作用下的损伤变形、破口大小及碰撞力,对比研究聚脲材料的抗撞防护性能。结果表明,聚脲涂层的存在能够加强舷侧板架的耐撞防护性能。

Experimental study on the collision resistance of polyurea coated side grillage

In order to solve the problem of anti-collision of ship′s side structure, drop weight impact test of side grillage was carried out in this paper. First, the finite element model of side grillage based on the structural of a certain type of coast guard ship was built, the transient dynamics software MSC/Dytran is used to perform numerical simulation of the structure test model, then determine the height of the drop hammer and the test conditions, Then on this basis, the model grillage was made and the study on drop weight impact test of side grillage with or without polyurea coating was conducted. The results such as structural damage deformation、break size and impact force of side grillage under the impact load were obtained respectively, and compare the impact protection performance of polyurea. It has found that the polyurea coating can strengthen the collision resistance of the side grillage.