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Lightning effect test device for dynamic airplane

A test device and aircraft technology, which is applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve the problems of high experimental cost and long test period, and achieve the effect of reducing experimental cost and reducing error sources.

Active Publication Date: 2011-06-08
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accurate experimental data can be obtained in the flight experiment of the aircraft passing through the thunderstorm area, but the experiment cost is expensive, and the test period is longer because it needs to find the thunderstorm area for multiple test flights

Method used

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  • Lightning effect test device for dynamic airplane
  • Lightning effect test device for dynamic airplane
  • Lightning effect test device for dynamic airplane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The test data of embodiment 1:

[0079] (1) Direct effects of lightning:

[0080] Lightning attachment point location

nose

wing tip

Horizontal tail

vertical tail

Probability (%)

37.2

27.9

22.2

16.1

[0081] (2) Indirect effects of lightning:

[0082] see figure 2 , image 3 As shown, when a lightning strike occurs, the maximum electric field intensity of test point A reaches 60V / m, and the maximum electric field intensity of test point B reaches 14V / m. Comparing the maximum allowable working electric field of the equipment, the interference or damage caused by the strong electromagnetic waves generated by lightning to the electrical and electronic equipment of the aircraft can be obtained.

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PUM

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Abstract

The invention discloses a lightning effect test device for a dynamic airplane. A computer in the device is arranged outside a microwave dark room; a round turntable A, a round turntable B, an airplane scale model, a lightning generator, a spectrum recorder, a support platform and a camera are arranged in the microwave dark room; the camera is mounted on the support platform; the airplane scale model is mounted on the round turntable A; the spectrum recorder is mounted on or in the airplane scale model; and the lightning generator is mounted on the round turntable B. When the round turntable A and the round turntable B rotate relatively, various types of lightning analogue currents and electromagnetic waves generated by the lightning generator act on the airplane scale model; and when the lightning happens, the spectrum recorder records the lightning indirect effect, and the camera records the lightning direct effect. According to the invention, the process that the airplane in dynamic flying mode encounters lightning can be simulated in the limited space of the microwave dark room so that the tested data approaches to the real conditions better and the error is reduced.

Description

technical field [0001] The invention relates to a dynamic aircraft lightning effect test device, more particularly, a dynamic aircraft lightning effect test device for simulating the process of an aircraft encountering a lightning strike in a dynamic flight mode under the condition of a limited space in a microwave anechoic chamber. Background technique [0002] Lightning is one of the most serious natural disasters that threaten human beings. The impact of lightning on aircraft is divided into direct effects of lightning and indirect effects of lightning. The direct effect of lightning refers to the effects of burning, corrosion, and structural distortion caused by high-temperature, high-voltage shock waves and electromagnetic forces on the aircraft when the lightning arc is attached to the surface of the aircraft; the indirect effect of lightning refers to the strong electromagnetic The impact of pulse on personnel and fuel safety and the interference or damage caused by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R29/08
Inventor 赵小莹王静邓力鹏郭丹丹陈有锋苏东林
Owner BEIHANG UNIV
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