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An experimental device and method for simulating multi-blade shooting

The technology of a test device and test method is applied in the field of target shooting test devices and can solve problems such as inconsistencies

Active Publication Date: 2021-10-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Defects that cause test results to be inconsistent with reality

Method used

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  • An experimental device and method for simulating multi-blade shooting
  • An experimental device and method for simulating multi-blade shooting
  • An experimental device and method for simulating multi-blade shooting

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Experimental program
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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] refer to Figure 1 to Figure 5 As shown, the present invention discloses a test device for simulating multi-blade shooting, including an air cannon, a target body 7 for fixing the target material, a bullet holder 6 located in the air gun barrel 5, and a projectile located in the bullet holder 6 , High-speed camera 8. The high-speed camera 8 is used to photograph the trajectory of the projectile after it is shot out from the barrel of the air cannon. The air cannon comprises a gas cylinder 1, a solenoid valve 2 for controlling the gas cylinder, an air chamber 3, a solenoid valve 4 for controlling the gas chamber, and a gun barrel 5. The muzzle of the air cannon faces the target body 7 . The surface of the bullet holder 6 facing the target body 7 is concavely provided with several ballistic paths 61 arranged side by side, and ...

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Abstract

The invention discloses a test device and method for simulating multi-blade target shooting. The test device comprises an air cannon, a target body, a bullet rest located in the barrel of the air cannon, and a projectile located in the bullet rest; One side is concavely provided with several side-by-side ballistic paths, which can launch several projectiles at a time, and each projectile acts as a simulation of a blade, and the impact on the target material can simulate the impact of loss of multiple blades on the performance of the receiver. And by adjusting the ballistic shape, the initial angle between the projectile and the target body can be adjusted to simulate the yaw angle of the blade, so as to simulate the trajectory of the blade more realistically and accurately. And through the improvement of different ballistic depths, several projectiles are spaced to hit the target material of the simulated casing, and the simulation of multi-blade spaced collision to the casing is realized.

Description

technical field [0001] The invention belongs to the field of high-speed impact tests, and in particular relates to a target shooting test device and method capable of simulating a multi-blade impact casing. Background technique [0002] In the aerospace field, many components can be impacted by foreign objects, be it birds, ice, missing blades, etc. When an aero-engine is performing a flight mission, blades may be lost due to the rotational speed reaching a critical point or reaching the limit of material properties, and the blades of the engine are often made of the same material, and most of the blades reach the critical point at the same time and start to be lost one by one , it will cause multiple blades to be lost and hit the receiver together. Then there is a higher requirement for the inclusiveness of the casing. If the casing cannot accommodate these missing blades, a major accident will result. [0003] Therefore, when designing the high-speed impact shooting test...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/36G01M7/08F41B11/80
CPCF41B11/80G01M7/08G01N3/36G01N2203/001G01N2203/0044G01N2203/0641
Inventor 刘璐璐于飞赵振华陈伟罗刚
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS