Sighting device for light-gas gun simulating hard object damage

Abstract

The invention discloses a sighting device for a light-gas gun simulating hard object damage. The device is characterized in that the device includes a filtering head, a light gas gun barrel and a diode laser; the filtering head is inserted into a stop holder mouth of the light gas gun barrel; the diode laser is inserted into a bullet loading mouth of the light gas gun barrel; and a light beam emitted by the diode laser passes through the filtering head to generate a beam of light coinciding with the axis of the light gun barrel. Beneficial effects achieved by the device are that: the technicalscheme adopts a principle that the diode laser emits a laser beam and a light filter with micropores performs filtering, and so, micro light spots are generated without causing observation difficultydue to insufficient spot intensity; a matching mode with small clearance is adopted between the diode laser, the light gas gun barrel and the filter, thus not only ensuring that an emergent beam is consistent with a ballistic trajectory of an emergent projectile body, but also requirement of easy assembly and disassembly is achieved; and the sighting device not only is fewer in component, is easyto assemble, but also has the advantage of simple and reliable use.

Description

technical field [0001] The invention relates to an aiming device for simulating damage to a light gas gun by a hard object, and belongs to the technical field of aero-engine structural strength. Background technique [0002] During the working process of aero-engines, the high-speed rotating fans, compressors and turbine blades not only bear huge centrifugal force loads, but also bear high-frequency vibration loads caused by forced airflow vibration, making high-cycle fatigue failure a must in design The key issue. Because high-cycle failure is very sensitive to the surface state of the structure, and during take-off, landing or low-altitude flight, aero-engines often inhale some hard objects (such as sand, cement blocks, screws, etc.) due to strong airflow pressure, and then enter the engine airflow After the passage, it collides with the high-speed rotating blade to form a hard object impact damage, which is very easy to become a source of fatigue, causing premature high-...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, the object of the present invention is to provide a light gas gun aiming device for simulating hard object damage, and solve the problem that naked-eye aiming leads to large test dispersion and even leads to test failure.

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