Aircraft black box recovery method and device

Abstract

The invention provides an aircraft black box recovery method. A black box is mounted and fixed on an aircraft by explosive bolts, an ignition command of the aircraft is used as the starting timing condition, a timer outputs an explosion signal when the preset time is reached to make a tiny explosive device to explode the explosive bolts, the black box is disengaged from the aircraft, at the same time the timer restarts, and after reaching the preset time, airbags open to decelerate. The invention simultaneously provides an aircraft black box recovery device, which comprises a black box protective shell, the main air bag, the small air bag, an air bag box, the explosive bolts, the timer, a control chip, an igniter, nitrogen solid ions, and the like. The mode that the black box is disengagedfrom a mother body by timing explosion of the explosive bolts and lands through the air bags is adopted, and the problems of limited recovery method and poor recovery effect of the black box in the current aircraft development process can be solved.

Description

technical field [0001] The invention relates to a recovery method of an aircraft black box and an aircraft black box recovery device, which belong to the technical field of aircraft testing of aerospace, aviation and weapons. Background technique [0002] In the process of aircraft development, the records of its own dynamic information and environmental information during its launch and flight are indispensable. The black box that realizes this function must be installed on the aircraft, and the test data of the aircraft is stored in real time during the flight test until the aircraft falls. Since the falling speed of the aircraft is extremely fast and can even reach the supersonic speed of several Machs, a huge impact force will be generated during the collision with the ground. For this reason, a special protection design must be carried out on the black box to ensure reliable recovery of recorded data. [0003] The current protection design mainly focuses on the vibrat...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a recovery method of the aircraft black box and an aircraft black box recovery device, which adopts the method of timing blasting and exploding bolts to separate from the mother body and the airbag landing method, which can solve the problem of limited black box recovery methods in the current aircraft development process. Problems such as poor recycling effect

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