Composite load reduction device for high-speed water entry of aircraft body

Abstract

The invention provides a composite load reduction device for high-speed water entry of an aircraft body. The composite load reduction device comprises a fairing detachably connected to the head of a main projectile body, a cavitator and a damping device, wherein the cavitator and the damping device are arranged in the fairing; the damping device is arranged in the fairing and located between the cavitator and the main projectile body; and the damping device comprises a sealing pressure cylinder, a piston, a mounting seat, a piston rod, a tension spring, an air cavity and buffer air. The composite load reduction device is a buffer vibration reduction device which utilizes the pneumatic damping device and buffer foam for load reduction at the same time. Meanwhile, the pneumatic damping device and the buffer foam are utilized for buffering, and the composite load reduction device has higher load reduction performance.

Description

technical field [0001] The invention relates to the technical field of water entry of a vehicle, in particular to a load reduction device that adopts a combination of aerodynamic damping type load reduction and physical foam type load reduction for buffering, and in particular relates to a composite buffer load reduction device for a vehicle body entering water at high speed device. Background technique [0002] Modern underwater vehicles require more flexible launch methods to effectively avoid tracking by radar and other devices. More and more underwater vehicles are launched by air delivery. When an underwater vehicle or an air-launched torpedo falls from a high altitude, the head of the vehicle will be subjected to a huge short-term impact pressure at the moment it hits the water, which may cause damage to the internal structure of the vehicle, especially the electronic equipment. The probability of this kind of damage increases rapidly with the increase of the impact v...

AI Technical Summary

Problems solved by technology

When an underwater vehicle or an air-launched torpedo falls from a high altitude, the head of the vehicle will be subjected to a huge short-term impact pressure at the moment it hits the water, which may cause damage to the internal structure of the vehicle, especially the electronic equipment.

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