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Air cannon heavy piston quick reset system and method for aircraft high-speed impact test

A high-speed impact and air cannon technology, applied in the field of air cannon heavy piston quick reset system, can solve the problems of air cannon safety, waste of manpower and material resources, low efficiency, etc., to improve the effect of high-speed impact test of aircraft and reduce workload , the effect of improving the effect

Active Publication Date: 2022-07-22
CHINA AIRPLANT STRENGTH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method wastes a lot of manpower and material resources, and because of the many disassembly, it leads to low efficiency. At the same time, there is a safety problem of the air cannon caused by multiple disassembly and installation.

Method used

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  • Air cannon heavy piston quick reset system and method for aircraft high-speed impact test
  • Air cannon heavy piston quick reset system and method for aircraft high-speed impact test
  • Air cannon heavy piston quick reset system and method for aircraft high-speed impact test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 , 2 , 3, the air cannon heavy piston quick reset system for the aircraft high-speed impact test includes a compression tube 1, a piston assembly 2, an air pressure detection assembly 3 connected to the compression tube 1, and an electrical monitoring assembly 4. The inside of the compression tube 1 is from left to The right is the energy storage cavity 10, the sliding cavity 11 and the energy releasing cavity 12 in sequence, and the energy storage cavity 10, the sliding cavity 11 and the energy releasing cavity 12 are connected with each other;

[0039] like Image 6 As shown, the piston assembly 2 includes a balance piston 20 which is arranged in the energy storage chamber 10 and acts as a seal, and a heavy piston 21 that can slide left and right in the energy storage chamber 10, the sliding chamber 11 and the energy releasing chamber 12; the heavy piston 21 includes The support body 210 is provided with an extrusion notch 2100 on the outer wall, and th...

Embodiment 2

[0047] This embodiment differs from Embodiment 1 in that:

[0048] like Image 6 As shown, two locking blocks 2101 are symmetrically distributed at the opening of the extrusion recess 2100, and the outer wall of the elastic extrusion block 2110 is provided with a card slot 2111 corresponding to the locking blocks 2101 one-to-one. The locking blocks 2101 It can be snapped into the corresponding card slot 2111 .

Embodiment 3

[0050] This embodiment differs from Embodiment 2 in that:

[0051] like figure 2 , 3 , 4, the side wall of the energy release cavity 12 is provided with an expansion section 121 with an increased radius, and the expansion section 121 is provided with a jet pressure release ring 14, the jet pressure release ring 14 is a hollow cylindrical structure, and the jet pressure release ring 14 The radius of the inner circle is equal to the radius of the energy releasing cavity 12 , and the jet pressure releasing ring 14 is provided with an interface 140 between the side close to the sliding cavity 11 and the expansion section 121 . There are 6 inner energy releasing holes 141, and the outer circular side wall of the jet pressure releasing ring 14 is provided with 6 outer energy releasing holes 142 corresponding to the inner energy releasing holes 141 one-to-one, and the outer energy releasing hole 142 and the inner energy releasing hole 141 are connected with each other. are connect...

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Abstract

The invention provides an air cannon heavy piston quick reset system and method for an aircraft high-speed impact test, and belongs to the technical field of aircraft tests. Comprising a compression pipe, a piston assembly, an air pressure detection assembly communicating with the compression pipe and an electrical monitoring assembly, an energy storage cavity, a sliding cavity and an energy release cavity are sequentially formed in the compression pipe from left to right, and the energy storage cavity, the sliding cavity and the energy release cavity communicate with one another; the heavy piston quick reset system meets various air cannon systems with heavy pistons, especially secondary air cannon systems, and also can be used for moving and resetting internal objects in various closed structures, and in the reset process of the heavy pistons of the system, the whole process is intelligently controlled through air pressure, a large number of structures do not need to be disassembled, the experiment efficiency is improved, and the experiment cost is reduced. The workload of experimental equipment operation technicians is reduced, and the intelligent degree is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft testing, in particular to an air cannon heavy piston quick reset system and a method thereof for aircraft high-speed impact testing. Background technique [0002] The air cannon system is the most effective and widely used experimental device to study the high-speed impact of aircraft structures. At present, the commonly used air cannon systems include primary air cannon system, secondary air cannon system and multi-stage air cannon system. Among them, the two-stage and multi-stage air cannon systems have a very important structure - heavy piston. It can convert the internal energy of high-pressure gas into kinetic energy, and then convert the kinetic energy into the internal energy of higher-pressure gas to form ultra-high-pressure gas, which provides support for the high-speed impact of the aircraft structure. [0003] At present, in various air cannon experiments, the installation of the hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08G01N3/02G01N3/307B64F5/60F04B41/02F15B1/02F15B1/24F15B3/00F15B13/02
CPCG01M7/08G01N3/307G01N3/02B64F5/60F04B41/02F15B1/02F15B1/24F15B3/00F15B13/02G01N2203/0044
Inventor 刘小川张宇白春玉王计真
Owner CHINA AIRPLANT STRENGTH RES INST
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