High-stability regular octagonal umbrella

Abstract

The invention discloses a regular octagonal umbrella with high stability. The plane shape of the parachute canopy is a regular octagon, the structural opening seams are additionally arranged on the side faces of the parachute, and the eight parachute canopy structural opening seams are designed, so that disordered airflow in the parachute can flow out more easily, and stability is improved. The high-stability umbrella-shaped structure is good in air permeability, in the working process, the swing angle amplitude is reduced, and the stability is improved; the maximum parachute opening dynamic load can be effectively reduced, the stability and the wind resistance are improved, and the landing speed and damage are reduced.

Description

technical field [0001] The invention belongs to the technical field of parachute jumping for airborne troops, and specifically relates to a regular octagonal umbrella type with high stability. Background technique [0002] The drag efficiency per unit mass of the parachute is much higher than that of other aerodynamic reducers, and at the same time it can be folded in a very small container. This feature makes the parachute widely used in parachuting. The paratrooper parachute is a stable deceleration device for airborne troops, used for airborne combat and training. [0003] The requirements for the paratrooper parachute are: the parachute system works reliably; the parachute landing overload is small; it has good stability and maneuverability; the parachute system can be quickly separated from the human body. In the past, the swing angle of the paratrooper's parachute in the air was too large and the stability was poor. [0004] The so-called stability refers to the abil...

AI Technical Summary

Problems solved by technology

The stability of the cross umbrella is good, but the resistance coefficient of the canopy is small, the descending speed is fast, and the safety is low

[0007] The stability of the umbrella can be improved by opening holes, but the size of the opening is not easy to calculate, and if the opening area is too large, it will affect the rigidity of the umbrella, reducing the drag coefficient and reducing the stability

[0008] Extending the bottom edge of the canopy improves the stability of the canopy to a certain extent, but after the canopy is extended, the time to open the canopy is too long and it is easy to be damaged, which affects the safety. The weight of the clothes is not conducive to airborne

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