Method for damping hatch cover guide frame for ship

Abstract

The invention discloses a method for damping a hatch cover guide frame for a ship. The method comprises the following steps of: 1, preparing an alloy top plate (1) and an alloy bottom plate (2); and 2, laminating an alloy folded plate (3) and a rubber folded plate (4) between the alloy top plate (1) and the alloy bottom plate (2), arranging the alloy folded plate (3) and the rubber folded plate (4) at interval, inserting alloy cylinders (5) into the middle parts of the alloy folded plate (3) and the rubber folded plate (4), making the rubber folded plate (4) produce a viscoelastic state and shearing the viscoelastic state produced by the rubber folded plate (4) by using the alloy folded plate (3) so as to form shearing damping. The shearing damping produces an internal stress strain hysteresis loop and vibrational energy is consumed, so that damping can be performed effectively.

Description

technical field [0001] The invention relates to a vibration damping method for a guide frame of a hatch cover of a ship. Background technique [0002] At present, ships with lift-off hatch covers usually have guide frames at the bow and stern of the cargo hold to stack the hatch covers. When the ship is sailing, the guide frames vibrate violently and are accompanied by relatively loud noises. Long-term strong vibration will not only cause fatigue damage in high-stress areas of the structure, but also cause abnormalities in machinery and instrumentation equipment, and even seriously affect the work and health of the crew. Contents of the invention [0003] The invention discloses a method for damping the vibration of the guide frame of the hatch cover of the ship, which can not only reduce the severe vibration generated by the guide frame of the hatch cover of the ship, ensure the normal operation of machines and equipment, but also ensure the rest and work of the crew . ...

AI Technical Summary

Problems solved by technology

[0002] At present, ships with lift-off hatch covers usually have guide frames at the fore and aft of the cargo hold to stack the hatch covers. When the ship is sailing, the guide frames vibrate violently and are accompanied by relatively loud noises.

Long-term strong vibration will not only cause fatigue damage in high-stress areas of the structure, but also cause abnormalities in machinery and instrumentation equipment, and even seriously affect the work and health of the crew.

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