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Ship vibration damping structure and ship

A vibration-damping structure and ship technology, applied in the direction of ship hull, ship construction, ship parts, etc., can solve the problems of complex vibration-damping structure, and achieve the effects of low processing cost, simple structure, and little impact on hydrodynamic performance.

Active Publication Date: 2019-01-18
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the composite damping structure in the prior art plays a role of damping, it is necessary to additionally install vibration-damping masses, damping devices and steel balls on the ship, making the damping structure complicated.

Method used

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  • Ship vibration damping structure and ship
  • Ship vibration damping structure and ship

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Embodiment Construction

[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0026] This embodiment provides a ship vibration damping structure, which is used in the ship vibration damping, but not limited thereto, so as to simplify the ship vibration damping structure and reduce the processing cost.

[0027] Such as figure 1 and figure 2 As shown, the ship vibration damping structure provided by this embodiment includes a cabin 1 above the propeller 2 that allows seawater to enter and a number of damping holes 12 . The bottom of the cabin 1 is provide...

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Abstract

The invention relates to the technical field of ship manufacturing, in particular to a ship vibration damping structure and a ship. The ship vibration damping structure comprises a cabin which sea water is allowed to enter above the propeller, an outer plate is arranged at the bottom of the cabin, and a plurality of vibration damping holes are arranged on the outer plate. The vibration damping holes reduce the area of the outer plate, so that the excitation force acting on the outer plate is reduced, and the excitation force transmitted from the outer plate to other areas of the ship is reduced, so as to reduce the vibration of the whole ship; Seawater can enter the cabin through the damping hole, and the excitation force is transmitted to the cabin through the outer plate and the dampinghole. The seawater in the cabin plays the role of vibration absorption, and further reduces the excitation force transmitted to other areas of the ship. Through the analysis, it is concluded that mostof the exciting force produced by the propeller acts on the outer plate, and by cutting off and reducing the exciting force acting on the outer plate, the exciting force transmitted to other areas ofthe ship can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of ship manufacturing, in particular to a ship vibration damping structure and a ship. Background technique [0002] In modern ships, due to the progress of marine main engine manufacturing, the vibration excitation force of the main engine is getting smaller and smaller, and the propeller has become the largest source of vibration excitation force of the ship, which leads to excessive vibration of the hull and affects the comfort of the ship. [0003] In the prior art, in order to reduce the excitation force generated by the propeller, a composite damping structure is installed at the stern of the ship. The composite damping structure includes a bottom plate, a platform, a rear bulkhead and a front bulkhead arranged in the area above the propeller at the tail of the hull. There are multiple vibration-damping masses on the bottom plate to hinder the transmission of vibration energy. The bottom plate and plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B17/00B63B11/00
CPCB63B11/00B63B17/0081
Inventor 茆海
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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