The ship fireproofing structure is a multi-layer heat transfer structure consisting of a hull structural layer,a fireproofing layer and a nail-based bonding layer.Due to the low magnetic properties of composite materials such as carbon fibre composites,they are used as deck structures in hulls such as minesweepers.Compared to traditional steel hulls,carbon fibre composite hulls have poor high temperature resistance,and traditional fireproof structures are difficult to meet the thermal protection requirements of composite hulls.Therefore,a thermal performance analysis model of marine composite multilayer fire protection structure is established by taking the carbon fibre hull fire protection structure as the object.Temperature prediction of the fire protection structure under high temperature load is achieved,and accuracy of the temperature prediction is verified through the scaled part test.On this basis,the optimised structure of"shunt-type"nails is proposed,which reduces the maximum temperature of the composite hull structure by 24％,improves the thermal protection performance of the hull fireproof structure,and meets the A60 fireproof requirements.
NETL
NSTL
万方数据
