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Deep sea bionic pressureproof shell

A pressure-resistant shell and deep-sea technology, which is applied to ships, special-purpose ships, underwater ships, etc., can solve problems that cannot be simultaneously satisfied or effectively coordinated, poor hydrodynamic properties, poor mechanical properties, etc.

Active Publication Date: 2015-05-27
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the spherical shell has the advantages of good mechanical properties and high material utilization rate, but the space utilization rate is low and the hydrodynamic properties are poor, so it is mainly used in deep-sea submersibles; the cylindrical shell has the characteristics of high space utilization rate and good hydrodynamic properties. , but the material utilization rate is low, the mechanical properties are poor, and internal reinforcement is required, and it is generally used in shallow sea submersibles
In addition, the pressure-resistant shell also includes a water drop structure with good hydrodynamic properties, and a ring structure with strong pressure-resistant properties, but all of them seriously sacrifice other properties of the pressure-resistant shell
It can be seen that the existing pressure shell design level cannot meet or effectively coordinate these performances at the same time, causing a technical bottleneck for the development of deep-sea submersibles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Assuming that the deep-sea bionic pressure shell is made of titanium alloy Ti-6Al-4V (TC4), the allowable stress [σ] is 830MPa, and the material density ρ is 4.5g / cm 3 , the design water depth is 6km, the calculated pressure P is 98MPa, the total length L is 2.453m, the total width B is 1.835m, then L / B is 1.34; the length L1 of the left end head 1 is 20% of the total length L, and the right end head 3 The length L3 is 25% of the total length L, according to equation (1), the rotation radius equation of the outer surface of the deep sea bionic pressure shell along the long axis direction is:

[0049] R ( x ) = 1.7843 x 1.355 - x 2 - - - ( 4 )

[0050] Find the first and second der...

Embodiment 2

[0067] Assuming that the deep-sea bionic pressure-resistant shell is made of carbon fiber reinforced resin matrix composite material, the allowable stress [σ] is 830MPa, and the material density ρ is 1.6g / cm 3 , the design water depth is 6km, the calculated pressure P is 98MPa, the total length L is 2.453m, the total width B is 1.835m, then L / B is 1.34; the length L1 of the left end head 1 is 20% of the total length L, and the right end head 3 The length L3 is 25% of the total length L, according to equation (1), the rotation radius equation of the outer surface of the deep sea bionic pressure shell along the long axis direction is:

[0068] R ( x ) = 1.7843 x 1.355 - x 2 - - - ( 12 )

...

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Abstract

The invention discloses a deep sea bionic pressureproof shell. An axial-symmetry eggshell-shaped structure with the length of L, the width of B and the turning radius of R(x) is formed by a left end socket, a right end socket and a middle shell, wherein the thickness t2 of the middle shell is of an equal-strength variable-thickness structure, the thickness t1 of the left end socket and the thickness t3 of the right end socket are respectively of an equal-thickness structure, the left end socket and the middle shell are fixedly connected, and the right end socket and the middle shell are connected by a flange bolt or a movable hatch cover with a seal ring. The deep sea bionic pressureproof shell has good mechanical properties, in-shell space utilization rate, hydrodynamic characteristics and passenger comfort, and comprehensive improvement on safety, carrying capacity, mobility and diving time of a diving device is facilitated; meanwhile, the weight of the pressureproof shell is lightened, the reserve buoyancy of the pressureproof shell is increased, and the processing and manufacturing difficulty and cost are reduced.

Description

technical field [0001] The invention belongs to the field of mechanical structure design, relates to a submersible, in particular to a bionic pressure-resistant casing for a deep-sea submersible. Background technique [0002] As the speed of ocean development continues to accelerate, the depth of exploration from the offshore to the open sea continues to increase. There are many types of submersibles for various operating purposes and they are developing rapidly. They are mainly used in resource exploration and development, scientific research, military detection and salvage. As an important part of the submersible, the pressure-resistant shell plays a role in ensuring the normal operation of internal equipment and the health and safety of personnel during the dive process, and its weight accounts for 1 / 4-1 / 2 of the total weight of the submersible. The pressure shell is a thin shell structure that withstands hydrostatic pressure. It requires good mechanical properties, space...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63G8/00B63C11/52
Inventor 张建高杰王明禄王纬波唐文献朱永梅吴文伟晏飞苏世杰
Owner JIANGSU UNIV OF SCI & TECH
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