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A vertically symmetrical thrust bearing base for a small waterplane area catamaran

A double-body, thrust bearing technology with small waterplane surface, applied in the direction of hydrodynamic characteristics/hydrostatic characteristics, ship hull, ship construction, etc., can solve the problems of small base impedance, large vibration and noise, etc., and achieve large mechanical input. Impedance, easy operation, avoid the effect of additional bending moment excitation

Active Publication Date: 2020-12-08
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the thrust bearing base is generally installed on one side, which is very easy to generate additional bending moment excitation, and the impedance of the base is small, which easily causes large vibration noise

Method used

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  • A vertically symmetrical thrust bearing base for a small waterplane area catamaran
  • A vertically symmetrical thrust bearing base for a small waterplane area catamaran
  • A vertically symmetrical thrust bearing base for a small waterplane area catamaran

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Embodiment Construction

[0026] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0027] like figure 1 As shown, the upper and lower symmetrical thrust bearing bases for small waterplane area catamarans of this embodiment include an upper base 1 and a lower base 8 arranged at intervals, and the upper base 1 and the lower base 8 are installed in the interval There is a thrust bearing 4, and the two sides of the outer wall of the thrust bearing 4 extend outward with footings 9, and the footings 9 are connected to the upper base 1 or the lower base 8 through a vibration isolator 5; the vibration isolator 5 is used to further control the shafting Vibration and noise of the hull caused by the thrust bearing 4 exciting the upper base 1 and the lower base 8 .

[0028] The vertical stiffness of the vibration isolator 5 is small to control the transmission of vertical vibration; the longitudinal stiffness is slightly larger to ...

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Abstract

The invention relates to an up-and-down symmetrical thrust bearing base for a small waterplane catamaran, which comprises an upper base and a lower base which are oppositely arranged at an interval, wherein a thrust bearing is arranged in the interval between the upper base and the lower base; the two sides of the outer wall of the thrust bearing extend outwards to form footings; the footings areconnected with the upper base or the lower base through vibration isolators; an upper platform is installed at the top of the upper base; shells are installed on the two sides of the interval betweenthe upper base and the lower base; the upper ends and the lower ends of the shells are fixedly connected with the upper base and the lower base respectively; each shell is of an arc-shaped outwards-protruding structure; and a plurality of reinforcing ribs are fixedly installed on the inner wall face of each shell. The up-and-down symmetrical thrust bearing base is used for static thrust transmission and dynamic excitation force control of the propulsion shafting of the small waterplane catamaran, and provides powerful technical support for radiation noise control of the small waterplane catamaran.

Description

technical field [0001] The invention relates to the technical field of bearing bases, in particular to a vertically symmetrical thrust bearing base for small waterplane area catamarans. Background technique [0002] A small waterplane area catamaran, also known as a semi-submersible catamaran. A small waterplane area catamaran refers to a ship with a small waterline area that is connected by two submersible bodies and an above-water box with two streamlined pillars in the middle. The biggest feature of this ship type is good seakeeping, especially at high speed and high waves, this feature is more obvious. [0003] The small waterplane area catamaran with double submersible structure and good seakeeping performance has been widely used in scientific investigation, noise measurement and other fields. A larger "moon pool" can be designed in the middle of the small waterplane area catamaran, which is conducive to the deployment and recovery of large-scale measuring equipment....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B1/10B63B17/00
CPCB63B1/107B63B17/0081
Inventor 祁立波周爱国张辉邹明松余越
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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