Design method of head-tube body integration filament-wound composite cylinder

A technology of winding composite materials and composite materials, which is applied in the design field of head-tube body integrated fiber winding composite gas cylinders, and can solve the problems that the burst strength of the head does not meet the design indicators and other problems

Active Publication Date: 2014-03-26
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Using the above design method, the blasting strength of the head section often does not meet the design index, so it is necessary to repeatedly modify the winding layer design of the cylinder body to make the blasting strength of the head section meet the design requirements

Method used

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  • Design method of head-tube body integration filament-wound composite cylinder
  • Design method of head-tube body integration filament-wound composite cylinder
  • Design method of head-tube body integration filament-wound composite cylinder

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Embodiment Construction

[0058] Embodiments of the present invention will be described below in conjunction with examples.

[0059] Step 1: According to the requirements of a design task, it is necessary to design a composite gas cylinder with a volume of 25L. The envelope size of the gas cylinder is within the range of 750mm×300mm, the working pressure is 35MPa, and the burst strength is not less than 70MPa.

[0060] Step 2: Determine the geometric dimensions of the cylinder liner, such as figure 1 shown;

[0061] According to the volume and envelope size of the gas cylinder, the length of the barrel is set to 400mm, the radius is 120, and the outer diameter of the nozzle of the gas cylinder is 40mm. According to the volume calculation, the semi-axis B of the ellipsoidal surface of the head lining is

[0062] 3 ( 10 6 V - π ...

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Abstract

The invention relates to a design method of a head-tube body integration filament-wound composite cylinder. The composite cylinder can be used as high-pressure cylinders of rockets and missiles, vehicular natural gas storage pressure vessels and the like. According to the method, the quick and optimized design of the composite high-pressure cylinder winding and laying can be realized, and the repeatability of cylinder design, analysis and verification is reduced or even avoided.

Description

technical field [0001] The invention relates to a design method of a head-tube body integrated fiber-wound composite material gas cylinder, which can be used for rocket and missile high-pressure gas cylinders, vehicle-mounted natural gas storage pressure vessels, and the like. Background technique [0002] At present, composite gas cylinders have been widely used in launch vehicles, missiles, automobiles, military aircraft, etc. in foreign countries, while metal gas cylinders are used in booster devices of launch vehicles in my country. Compared with metal gas cylinders, fiber-wound composite material high-pressure gas cylinders have the failure mode of "leakage before bursting", light weight, high structural efficiency, and good corrosion resistance. Compared with titanium alloy gas cylinders of the same specification and pressure level The weight reduction effect of the projectile (arrow) body structure is significantly improved, and it is an ideal lightweight high-pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/06
Inventor 贺启林许光王洪锐周浩洋
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
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