Method for reducing parachute opening impact of ram air parachute

Abstract

The invention discloses a method for reducing parachute opening impact of a ram air parachute. A front edge notch of a lateral side air chamber and front edge notches of constraint air chambers are each evenly provided with a plurality of rope penetrating holes. The constraint air chambers and the lateral side air chamber on the same side are overlapped, and then a constraint rope is used. One endof the constraint rope is fixedly connected with the outer side of the lateral side air chamber, and the other end of the constraint rope penetrates through the rope penetrating holes in the lateralside air chamber and all the constraint air chambers on the same side in the S-shaped penetrating sequence and finally penetrates out of the outer side of the lateral side air chamber to be fixedly connected with the lateral side air chamber. The middle section of the constraint rope further penetrates through a cutting hole of a separator. The separator is fixedly connected with the outer side ofthe lateral side air chamber. When the ram air parachute is opened and a reserved air chamber is unfolded, a timer on the separator is started, when the set time is counted, the separator works, theconstraint rope is cut off in the middle, the air flow in the reserved air chamber flows to the constraint air chambers and the lateral side air chamber, and the ram air parachute is unfolded step bystep until being fully inflated and starting to work. By means of the method, the one-time large transient impact overload is changed into the multi-time small impact overload, and implementation is simple.

Description

technical field [0001] The invention belongs to the field of airdrops, and in particular relates to a method for reducing the impact of a stamped parafoil opening. Background technique [0002] The ram parafoil is a parafoil that relies on the ram air to inflate fully to form a wing. It will instantly expand the entire area at a certain parachute opening speed, and the impact of parachute opening is more than 50% higher than that of a conventional parachute. The strength of the micro-breathable material used on the upper and lower wing surfaces of the umbrella is difficult to withstand the impact of such a parachute opening, which is likely to cause damage to the canopy and failure of the parafoil. At the same time, the equipment carried by the stamped parafoil does not allow too much parachute overload , it is easy to cause damage to the equipment, so in many cases, it is necessary to take some measures to reduce the huge impact brought by the deployment of the stamping par...

AI Technical Summary

Problems solved by technology

[0002] The ram parafoil is a parafoil that relies on the ram air to inflate fully to form a wing. It will instantly expand the entire area at a certain parachute opening speed, and the impact of parachute opening is more than 50% higher than that of a conventional parachute. The strength of the micro-breathable material used on the upper and lower wing surfaces of the umbrella is difficult to withstand the impact of such a parachute opening, which is likely to cause damage to the canopy and failure of the parafoil. At the same time, the equipment carried by the stamped parafoil does not allow too much parachute overload , it is easy to cause damage to the equipment, so in many cases, it is necessary to take some measures to reduce the huge impact brought by the deployment of the stamping parafoil

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