Pneumatic damping type load reducing device for large-angle inclined underwater entry of navigation body

Abstract

The invention provides a pneumatic damping type load reducing device for large-angle inclined underwater entry of a navigation body. The pneumatic damping type load reducing device comprises a fairingwhich is mounted at the head of a main projectile body and is detachably connected with the head of the main projectile body, wherein a cavitator is arranged in the main projectile body; a pneumaticdamping device which is superposed with the axis of the fairing is arranged between the cavitator and the main projectile body; and a plurality of side hydraulic dampers are arranged between the pneumatic damping device and the inner wall of the fairing. At the moment that the main projectile body falls from high altitude and touches water, the fairing is disintegrated and broken due to impact load, and absorbs part of energy, and fragments are separated from the device. The pneumatic damping device mainly absorbs front normal impact energy from a water surface, and the side hydraulic damperscan absorb most of impact energy of the water surface on the side surface of the fairing, so that the pneumatic damping type load reducing device is especially suitable for an underwater entry workingcondition that the navigation body has a large inclination angle and an attack angle posture.

Description

Technical field[0001]The invention relates to the technical field of large-angle water entry of a vehicle, in particular to a load reduction device that uses a combination of aerodynamic damping type load reduction and physical foam type load reduction for buffering, and particularly relates to a pneumatic vehicle that enters the water at a large angle. Damping type load reduction device.Background technique[0002]Modern warfare requires underwater vehicles to have excellent anti-detection functions. The most direct thing is to avoid the tracking of radar and other detection equipment. It has become a trend to use more flexible air-launched methods to launch underwater weapons, and its difficult-to-capture characteristics have been verified. . However, the high-altitude shooting method will cause a huge impact pressure at the moment when the vehicle touches the water. If this slamming effect is not dealt with, it is very likely that the instrument installed inside the head of the veh...

AI Technical Summary

Problems solved by technology

However, the way of high-altitude injection will cause a huge impact pressure when the vehicle touches the water. If this slamming effect is not dealt with, it is very likely that the instruments installed inside the head of the vehicle will be damaged.

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