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A common inflatable multi-stage anti-collision and shock-absorbing structure for high-altitude airships

An inflatable, anti-collision technology, applied in the direction of airbag arrangement, etc., to increase resistance, avoid multiple collisions, and reduce air resistance

Inactive Publication Date: 2015-11-25
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither the air cushion nor the shock-absorbing foam can effectively anti-collision and shock-absorb the airship in the horizontal direction

Method used

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  • A common inflatable multi-stage anti-collision and shock-absorbing structure for high-altitude airships
  • A common inflatable multi-stage anti-collision and shock-absorbing structure for high-altitude airships
  • A common inflatable multi-stage anti-collision and shock-absorbing structure for high-altitude airships

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0037] Embodiment two: if figure 2 As shown, an inflatable multi-stage anti-collision shock absorption structure common to high-altitude airships adopts a multi-stage airbag anti-collision shock absorption mode, and the airbags at each level include a payload simulation cabin 1, a main airbag 2, and a side anti-collision shock absorption airbag 3 , one-level anti-collision and shock-absorbing sub-airbag 5, secondary anti-collision and shock-absorbing sub-airbag 6 and three-stage anti-collision and shock-absorbing sub-airbag 7. Among them, the gas between the primary anti-collision and shock-absorbing sub-airbag 5, the secondary anti-collision and shock-absorbing sub-airbag 6 and the third-stage anti-collision and shock-absorbing sub-airbag 7 is not connected, and the bearing critical pressure is gradually increased and a pressure-limiting valve is installed. 9. When the impact load during landing makes the air pressure in a certain sub-airbag exceed the critical pressure, the...

Embodiment 3

[0038] Embodiment three: as figure 1 with figure 2 As shown, during the recovery and landing process of the airship, a common inflatable multi-stage anti-collision shock absorption structure for high-altitude airships is filled with gas under the control of the airship air system, and the structure is in working condition. When the airship collides with the ground at a relatively low speed, in the vertical direction, due to the effect of the impact force, the pressure in each sub-airbag and the main airbag 2 increases rapidly. When the critical pressure is reached, the gas is deflated under the control of the pressure reducing valve to consume impact energy; when the speed is high, the pressure in the secondary anti-collision shock absorbing sub-airbag 6 also reaches the critical pressure, and the air is deflated under the control of the pressure reducing valve to continue to consume impact energy If the landing speed increases again, the three-stage anti-collision shock-abs...

Embodiment 4

[0039] Embodiment 4: An inflatable multi-stage anti-collision and shock-absorbing structure common to high-altitude airships has a small volume in the uninflated state during the airship launch and airborne process, and can be fixed outside the payload compartment without affecting the volume of the compartment , It can also reduce the air resistance during the flying and hovering process of the airship.

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PUM

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Abstract

Disclosed is a universal inflatable multi-level anti-collision damping structure for a high altitude airship. The structure comprises an effective load simulated cabin, frictional resistance boards, a bottom anti-collision damping air bag, side anti-collision damping air bags and a main air bag; the frictional resistance boards are in a box type with an opened top and contain the whole structure, the bottom anti-collision damping air bag is located at the bottom of a box, the side anti-collision damping air bags are located on the periphery of the box, and the main air bag is placed in the middle of the box, and surrounds the effective load simulated cabin and contacts with the side anti-collision damping air bags on the periphery of the box and the bottom anti-collision damping air bag at the bottom of the box. By means of the universal inflatable multi-level anti-collision damping structure for the high altitude airship, anti-collision damping problems of a near space aerocraft during recycling and landing can be solved, and purposes of simple operation, retractable structure, small mass and good economical efficiency are achieved.

Description

technical field [0001] The invention relates to an inflatable multi-stage anti-collision shock-absorbing structure common to high-altitude airships. The utility model belongs to the application field of buoyant airships. Background technique [0002] Near-space vehicles, such as stratospheric airships and high-altitude balloons, have high application value in many fields such as information acquisition and transmission, resource survey, intelligence reconnaissance, communication relay, and climate observation. The characteristics of low consumption ratio have become the research hotspots all over the world. In recent years, many countries, including the United States, Japan, the United Kingdom and Russia, have carried out in-depth research on near-space airships, implemented a series of research programs, and made great progress. As a high-altitude platform, airships in near space include flight missions such as release and recovery, fixed-point hovering, and cruise. Amon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64B1/58
Inventor 刘龙斌李雪吕明云肖厚地糜攀攀曹帅
Owner BEIHANG UNIV