A processing method for the bullet tail structure of a catamaran ship

Abstract

The invention discloses a processing method of a catamaran bullet tail structure, which comprises the following steps: (1) lofting and numbering; (2) machining and beveling; (3) assembly and welding:on flat steel plate, the assembling of the parts used in the bullet stern is combined with the assembling and welding of the main body of the ship, The longitudinal component inside the bullet stern is reliably connected with the strong component at the bottom of the hull stern, the strong longitudinal component inside the bullet stern extends two ribs in the cabin adjacent to the main hull, and the outer plate of the bullet stern is continuously welded with the bottom plate of the hull stern and bilge plate on both sides, and the smoothness of the outer plate is maintained. When the thicknessdifference between the bullet stern outer plate and the adjacent hull outer plate is >= 4 mm, the thicker bullet stern outer plate edge is inclined before assembly, and the inclined width is >= 4 times of the thickness difference; (4) appearance polishing. The invention can reduce the longitudinal deformation of the bullet tail, reduce the curvature change, has small welding deformation, reducesthe damage in the use process of the bullet tail structure, and has wide market popularization value.

Description

【Technical field】 [0001] The invention belongs to the field of ship processing, and in particular relates to a method for processing a bullet tail structure of a catamaran ship. 【Background technique】 [0002] Guangxi has many rivers and is a natural economic link connecting the Southwest China, Guangdong, Hong Kong, Macao and ASEAN. With the development of Guangxi's economy, the inland river ships in the region have played an irreplaceable role in promoting the circulation of materials between regions and the development of the river basin economy as water transportation. There are various types of inland ships, among which multi-purpose cargo ships with double-hull bullet tails have been widely used and promoted in the Xijiang River Basin and the Pearl River Delta, and have achieved good economic and social benefits. [0003] Due to the possibility of accidental collision and beaching of the bullet tail structure of catamaran ships, the damage is inevitable. However, duri...

AI Technical Summary

Problems solved by technology

[0003] Due to the possibility of accidental collision and beaching of the bullet tail structure of catamaran ships, the damage is inevitable. However, during the processing of the bullet tail, the longitudinal deformation of the bullet tail, large curvature changes, and large welding deformation occurred, which affected the structure of the bullet tail. service life