Airbag-type composite load reduction device for navigation body to enter water

Abstract

The invention provides an airbag-type composite load reduction device for a navigation body to enter water. The airbag-type composite load reduction device comprises a fairing and an airbag load reduction device, wherein the head of the fairing is sealed and is in a sharp arch shape, the inner wall of the tail end of the fairing is separably connected with the outer wall of the head of a main projectile body, and the airbag load reduction device is arranged in the fairing and is in contact connection with the fairing and the main projectile body separately, and comprises an airbag and a gas generation device. After the airbag-type composite load reduction device for the navigation body to enter water enters water, the fairing is broken and separated from the main projectile body, and the air generation device inflates an airbag to reduce the load and is separated from the main projectile body. The airbag-type composite load reduction device is used for load reduction on the head of thenavigation body in the process of aerial delivery or in the process of launching the navigation body into water at the medium-high speed, and is suitable for buffer and load reduction for the navigation body which enters water at a vertical or large inclined angle at the speed of 20 m / s to 70 m / s.

Description

technical field [0001] The invention relates to the technical field of water-entry load reduction for a vehicle, in particular to a composite buffer load-reduction device for a vehicle to enter water at high speed, and in particular to an airbag-type composite load-reduction device for a vehicle to enter water. Background technique [0002] Torpedoes and underwater vehicles require a more flexible launch method to effectively avoid the tracking of long-range detection equipment. More and more countries use airdrops or launches from aircraft or other vehicles in the air to deliver such underwater vehicles. When an underwater vehicle falls from a high altitude with a high initial velocity, its head will be subject to a huge instantaneous load (about milliseconds) at the moment it hits the water, which may cause damage to the electronic equipment inside the vehicle. With the increase of the water contact speed and the mass of the projectile, this impact load will increase rapid...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device for buffering and reducing vibration, which can solve the problem of instantaneous overload of the head of the navigation body under the condition of medium and high speed water entry, and adopts the deployment airbag load reduction and physical foam type load reduction, which can make up for the traditional filler type load reduction Problems with limited load shedding performance of buffers

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