A method for recovering an aircraft black box and an aircraft black box recovery device

Abstract

The invention provides a method for recovering the black box of an aircraft. The black box is installed and fixed on the aircraft through explosive bolts, and the ignition command of the aircraft is used as a starting condition, and a timer reaches a preset time to output a detonation signal to make a small explosive device explode the explosive bolts. The black box is separated from the aircraft, and the timer is restarted at the same time. When the preset time is reached, the airbag is deployed to decelerate. The invention also provides an aircraft black box recovery device, including a black box protective shell, a main air bag, a small air bag, an air bag box, an explosion bolt, a timer, a control chip, an igniter, nitrogen solid ions, and the like. The use of timed blasting and explosion bolt separation from the parent body and airbag landing method can solve the problems of limited black box recovery methods and poor recovery effect in the current aircraft development process.

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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