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Design method of anti-seepage drainage structure for aircraft fuselage equipment compartment

A design method and technology of anti-seepage and drainage, applied in the direction of fuselage, aircraft parts, transportation and packaging, etc., can solve the problems of aircraft crash and death, the impact of aircraft use in equipment cabins, etc., to achieve simple implementation process, simple maintenance, low cost effect

Inactive Publication Date: 2015-04-29
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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AI Technical Summary

Problems solved by technology

[0003] Rain leakage and water seepage in the equipment compartment have a great impact on the use of the aircraft
Some even caused crashes

Method used

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  • Design method of anti-seepage drainage structure for aircraft fuselage equipment compartment
  • Design method of anti-seepage drainage structure for aircraft fuselage equipment compartment

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Embodiment Construction

[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] A method for designing an anti-seepage drainage structure of an aircraft fuselage equipment compartment of the present invention, comprising:

[0019] 1) The sealing design of the joint between the mouth cover 1 and the mouth frame 5:

[0020] In the overlapping area between the mouth cover 1 and the mouth frame 5, a compressible sponge rubber plate 3 is used for sealing to prevent direct leakage of rainwater; see figure 1

[0021] 2) Infiltrated rainwater drainage design:

[0022] In the harsh environment of "salt fog" at sea, the dew formed on the surface of some airframes due to the temperature difference between morning and evening will slowly permeate into the interior of the side strip along the surface of the airframe in a saturated and slow permeation manner, and in the equipment hatch A diversion groove 6 with a U-shaped i...

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Abstract

The invention belongs to an anti-seepage drainage design technology for an aircraft structure, and relates to a design method of an anti-seepage drainage structure for an aircraft fuselage equipment compartment. The design method comprises the following steps: 1) a sealing design at the joint of an opening cover and an opening frame, namely sealing the overlapped area of the opening cover and the opening frame by virtue of a compressible sponge rubber sheet and preventing direct seepage of rainwater; 2) an infiltrated rainwater drainage design, namely arranging an inclined flow guide groove of which the section is U-shaped below an opening of the opening cover of the equipment compartment, connecting the lowest point of the flow guide groove with a drainage pipe for discharging slowly infiltrating water out of the aircraft; 3) an infiltrated rainwater seepage design, forming a plurality of drainage holes in the lowest point of the lower surface of the equipment compartment, and leaking the water infiltrating into the equipment compartment out of the aircraft. According to the design method, the water infiltrating into the equipment compartment is timely discharged when water is effectively prevented; and the design method is simple in implementation process, low in cost, and simple and easy to maintain.

Description

technical field [0001] The invention belongs to the anti-seepage and drainage design technology of an aircraft structure, and relates to a design method for an anti-seepage and drainage structure of an aircraft fuselage equipment compartment. Background technique [0002] For example, if the aircraft is parked on the ship's surface in the harsh "salt fog" environment at sea for a long time and flies at low altitude at sea, the airframe is directly exposed to the high humidity salt fog environment. Therefore, in order to facilitate equipment maintenance and repair requirements during design, many upward-opening maintenance hatches are designed. This brings many problems to waterproof, anti-seepage, anti-corrosion, etc. in the use process. At the same time, it also has a certain impact on the safe use of equipment inside the side cabin. Then need to design a kind of new structural form to make infiltrated rainwater discharge to the outside of the cabin rapidly. [0003] Rai...

Claims

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Application Information

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IPC IPC(8): B64C1/00
Inventor 陈广平孙志彬尹晶
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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