Inflatable deployment periodical capsule valve type reducer and curling, folding and collecting method of inflatable deployment periodical capsule valve type reducer

Abstract

The invention provides an inflatable deployment periodical capsule valve type reducer and a curling, folding and collecting method of the inflatable deployment periodical capsule valve type reducer and belongs to the technical field of reducers used by entry type spacecrafts for entering orbits. The problems existing in existing inflatable deployment reducers are solved. The inflatable deployment periodical capsule valve type reducer comprises a spherical-segment-shaped rigid head cone. An umbrella-shaped air bag composed of periodical capsule valves is arranged around the rigid head cone and expands to the outer side along a parabola from bottom to top to form the outer surface with the variable curvature. A set of stretching ropes are arranged at the position of a seam between every two adjacent capsule valves in the air bag. A flow turbulence air ring is arranged around the position with the largest diameter of the air bag. A horizontal mass center control disc is arranged on the inner side of the rigid head cone. An installation and insertion box is further arranged on the inner side of the rigid head cone. According to the curling, folding and collecting method of the inflatable deployment periodical capsule valve type reducer, W-shaped and start-shaped centripetal collecting manners are adopted to be combined with an annular winding method to fold the reducer, and the reducer and the method are used for deceleration of the spacecrafts.

Description

technical field [0001] The invention belongs to the technical field of speed reducers used by entering spacecraft to enter orbit, and in particular relates to an inflatable and unfolded periodic bag-valve type speed reducer and a curling, folding and folding method thereof. Background technique [0002] Spacecraft entry technology is an important technology, which is currently mastered by only a few countries; the process of spacecraft entry can generally be divided into the following stages: 1. Departing from the original orbit; Entering the atmosphere; 4. The entry section of turning into the orbit; 5. The landing section of turning into the orbit; 6. The safe landing of the spacecraft. In order to ensure the safe landing of the spacecraft, the entry section is very important to the deceleration process of the spacecraft. The inflatable reducer can increase the resistance area of ​​the spacecraft by inflating it. It has many advantages such as small carrying volume, light ...

AI Technical Summary

Problems solved by technology

In order to ensure the safe landing of the spacecraft, the entry section is very important to the deceleration process of the spacecraft. The inflatable reducer can increase the resistance area of ​​the spacecraft by inflating it. It has many advantages such as small carrying volume, light weight, and easy to fold. However, the existing inflatable deployment reducers still have problems such as small lower surface area per unit volume, complex gas flow path, low lift-to-drag ratio, and poor stability of the outer edge, which need to be optimized and solved.

Images