Glass fiber reinforced plastic ship bilge keel installation method

Abstract

The invention discloses a glass fiber reinforced plastic ship bilge keel installation method. The method includes the steps that a hull mold is provided with a horizontally-marked groove, and a boss in the shape the same as that of a bilge keel installation face is installed at a bilge keel installation position; a hull is prefabricated, and a steel plate is arranged at the bilge keel installation position and clamped in the prefabricated glass fiber reinforced plastic hull; a bilge keel is prefabricated, and a connecting steel plate is arranged on a bilge keel connecting end face; mold release is conducted, and the bilge keel is installed in a bilge keel installation groove in the hull; a drill bit is used for drilling the hull, the prefabricated steel plate in the glass fiber reinforced plastic hull and the steel plate on the bilge keel connecting end face from the inner side of the hull, and connecting threads are tapped on through holes in the steel plate on the bilge keel connecting end face; single-end bolts are adopted to penetrate the prefabricated steel plate in the glass fiber reinforced plastic hull from the inner side of the hull to be in threaded connection with the steel plate on the bilge keel connecting end face; and a gap between the bilge keel and the hull is pasted through glass fiber reinforced plastic, and surface treatment is conducted. The method has the beneficial effects that localization is accurate, installation is convenient, the connecting strength is high, and a use effect is good.

Description

technical field [0001] The invention relates to ship technology, in particular to a method for installing a bilge keel of a glass fiber reinforced plastic ship with convenient installation and good anti-rolling effect. Background technique [0002] We know that the bilge keel is a continuous profile installed on the ship’s bilge (that is, the linear part connecting the ship’s side and the bottom plate). Generally, ships with small square coefficients are equipped with bilge keels. The main function of the bilge keel is to increase the ship’s transverse The damping during rolling is used to strengthen the seakeeping and stability of the hull, and it can greatly reduce rolling and pitching under the condition of reasonable design and installation. However, inaccurate installation will reduce the maneuverability of the ship and damage the seakeeping and stability of the hull. In addition, due to the advantages of strong corrosion resistance and convenient maintenance, FRP ships...

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Problems solved by technology

However, inaccurate installation will reduce the maneuverability of the ship and damage the seakeeping and stability of the hull. In addition, due to the advantages of strong corrosion resistance and convenient maintenance, FRP ships have been widely used in recent years. The hull of FRP ships is made in prefabricated molds It is internally formed, and the rudder shaft, bell frame, bilge keel and power plant are installed after the fiberglass hull is demoulded. It is difficult to align the rudder shaft, bell frame, and bilge keel on the demoulded hull, and the installation accuracy is extremely poor. Great influence on the performance of the ship

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