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Centrifugal bird strike test method

A test method and centrifugal technology, which is applied in the field of bird strike test, can solve the problems of long-time charging and other problems, and achieve the effect of low noise, small space occupation and environmental friendliness

Active Publication Date: 2018-11-09
中电科芜湖通用航空产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas storage tank is a high-pressure device, and it takes a long time to pressurize before each test, and the high-pressure device is a source of danger, and regular pressure test inspections are required. The high-pressure gas storage tank also poses a great challenge to the safety management of the laboratory

Method used

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  • Centrifugal bird strike test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 7 As shown, the test piece for the bird strike test is the propeller 22 of the aircraft, the motor 23 is connected with the propeller 22 through the transmission 24, and the transmission 24 is used to transmit the driving force generated by the motor 23 to the propeller 22 to drive the propeller 22 to rotate. The axis of 22 is parallel to the length direction of the guide tube 11 , and the propeller 22 is facing the guide tube 11 . The input shaft of the transmission 24 is connected with the motor shaft of the electric motor 23 through a coupling, and the output shaft of the transmission 24 is connected with the propeller 22 through another coupling. Preferably, the transmission 24 is a continuously variable transmission, and its structure is as well known to those skilled in the art, and will not be repeated here. The continuously variable transmission can continuously adjust the transmission ratio, so that the continuous adjustment of the rotation spe...

Embodiment 2

[0051] Such as Figure 7 As shown, the test piece for the bird strike test is the fan blade 22 of the aircraft, the motor 23 is connected with the fan blade 22 through a transmission 24, and the transmission 24 is used to transmit the driving force generated by the motor 23 to the fan blade 22 to drive the fan blade 22 When rotating, the axis of the fan blade 22 is parallel to the length direction of the guide pipe 11 , and the fan blade 22 faces the guide pipe 11 . The input shaft of the transmission 24 is connected with the motor shaft of the electric motor 23 through a coupling, and the output shaft of the transmission 24 is connected with the fan blade 22 through another coupling. Preferably, the transmission 24 is a continuously variable transmission, and its structure is as well known to those skilled in the art, and will not be repeated here. The continuously variable transmission can continuously adjust the transmission ratio, so that the continuous adjustment of the ...

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Abstract

The invention discloses a centrifugal bird strike test method, which adopts a centrifugal bird strike test system and comprises the following steps: (S1) a bird body is revolved by a centrifugal rotating device of the centrifugal bird strike test system; (S2) after the linear velocity of the bird body reaches a set valve, the centrifugal rotating device releases the bird body, and guides the birdbody to strike a tested article; and a driving motor provides driving force for the centrifugal rotating device. According to the centrifugal bird strike test method disclosed by the invention, the centrifugal bird strike test system is adopted, source power is provided by the motor in cooperation with the centrifugal rotating device, consequently, a longer gun barrel and a high-pressure device are not needed, the space occupied by the whole test system is small, and the special management of the high-pressure device is not needed; moreover, the noise of the test system is small, the launchingof the bird body does not produce great explosion sound, so the centrifugal bird strike test method is environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of bird strike tests, in particular, the invention relates to a centrifugal bird strike test method. Background technique [0002] In view of the complexity of the bird strike problem, it is very difficult to establish a complete mathematical and mechanical model for theoretical analysis, and then obtain an analytical solution. Experimental research on bird strikes is the earliest and most basic method, and it is also the most direct and effective means and way to verify the structure's ability to resist bird strikes and guide the design of aircraft bird strikes. At present, the most commonly used method of ground bird strike test is the air cannon method. During the test, according to the size of the impact load required by the design, the bird body is accelerated to a predetermined speed in the long gun barrel with the high-pressure gas in the air tank, and then the bore hits the test piece. The test devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08
CPCG01M7/08
Inventor 熊俊吕万韬刘嘉胡饶峰
Owner 中电科芜湖通用航空产业技术研究院有限公司
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