Inverted Thrust Bearing Base and Its Design Method for Small Waterplane Area Catamaran

A technology of small water plane two-body and thrust bearings, which is applied in the direction of ship propulsion, shafts and bearings, bearing components, etc., and can solve the problems of insufficient noise reduction and improvement

Active Publication Date: 2021-07-06
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of the utility model in terms of noise reduction is obviously insufficient

Method used

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  • Inverted Thrust Bearing Base and Its Design Method for Small Waterplane Area Catamaran
  • Inverted Thrust Bearing Base and Its Design Method for Small Waterplane Area Catamaran
  • Inverted Thrust Bearing Base and Its Design Method for Small Waterplane Area Catamaran

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 with Figure 4 As shown, the present embodiment provides an upside-down thrust bearing base suitable for small waterplane area catamarans, and the upside-down thrust bearing base is used alone. The upside-down thrust bearing base 2 is welded by the base platform 21, the base web 22, the base bracket 23 and the base panel 24; the base platform 21 of the upside-down thrust bearing base is rooted in the pillar body 1, The longitudinal and transverse members of the base platform 21 are docked with the vertical and horizontal ribs of the pillar body 1; at the same time, avoid directly connecting the base structure with the radiation surface of the submerged body 3, so that the vibration passes through the pillar body 1 from the upside-down thrust bearing base 2 and then Transmission to the submerged body 3, so as to increase the vibration transmission path from the base panel 24 to the radiation surface of the submersible body 3, and reduce the vibration tr...

Embodiment 2

[0040] Such as figure 2 with Figure 4As shown, this embodiment provides an upside-down thrust bearing base suitable for a small waterplane area catamaran, and the upside-down thrust bearing base is used in conjunction with a connecting base (that is, a traditional thrust bearing base). The upside-down thrust bearing base 2 is welded by the base platform 21, base web 22, base bracket 23 and reinforced base panel 24; the base platform structure 21 of the upside-down thrust bearing base is rooted in the pillar Body 1, its longitudinal and transverse members are docked with the vertical and horizontal ribs of the pillar body; at the same time, avoid directly connecting the base structure with the radiation surface of the submerged body 3, so that the vibration is transmitted from the base 2 to the submerged body 3 through the pillar body 1, To increase the vibration transmission path from the base panel 24 to the radiating surface of the submerged body 3, and reduce the vibrati...

Embodiment 3

[0042] Such as image 3 with Figure 4 As shown, this embodiment provides an inverted thrust bearing base suitable for small waterplane area catamarans, which is used in combination with the inverted thrust bearing base on the double bottom. The upside-down thrust bearing base is welded by base platform 21, base web 22, base bracket 23 and reinforced base panel 24; the base platform structure 21 of the upside-down thrust bearing base is rooted in the pillar body 1. Its longitudinal and transverse members are docked with the vertical and horizontal ribs of the pillar body; at the same time, avoid directly connecting the base structure with the radiation surface of the submerged body 3, so that the vibration is transmitted from the base 2 to the submerged body 3 through the pillar body 1, so as to The vibration transmission path from the base panel 24 to the radiation surface of the submerged body 3 is increased, and the vibration transmission is reduced. The connection base 4...

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Abstract

The invention relates to an upside-down thrust bearing base of a small waterplane catamaran in the field of vibration reduction technology, which is characterized in that it includes a base platform and a base bracket; the base bracket is provided with a groove, The groove is used to accommodate the thrust bearing; one end surface of the base platform is connected with the base bracket, and the opposite end surface thereof is connected with the pillar body of the small waterplane area catamaran. The invention also provides a design method for the upside-down thrust bearing base of the small waterplane area catamaran. In the present invention, through the setting of the upside-down thrust bearing base, its impedance is higher than that of the traditional thrust bearing base, so that the modal frequency corresponding to the propeller-shafting-thrust bearing-thrust bearing base of the propeller broadband force excitation is increased, so that the corresponding Broadband force excitation produces less vibrational transmission at this frequency.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to an upside-down thrust bearing base of a small waterplane area catamaran and a design method thereof. Background technique [0002] 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. The small waterplane area catamaran consists of a double hull, a pillar body and two submerged bodies. Small waterplane area catamarans have developed rapidly since the 1980s and have many applications. Divided by function, it can be used for offshore operations, passenger transportation and oilfield services, military range support and underwater acoustic monitoring, tourism and entertainment, and test demonstrations. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C35/00B63H23/32G06F30/17G06F30/23
CPCB63H23/321B63H2023/325F16C35/00F16C2326/30
Inventor 黄修长华宏星李江涛刘见华苏智伟
Owner SHANGHAI JIAO TONG UNIV
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