A kind of medium and small parachute airship and its control method

Abstract

The invention relates to a medium and small-sized umbrella-type airship and a control method thereof. The airship comprises a soft airship body, wherein the soft airship body comprises a skin used for keeping a shape and a plurality of airbags arranged in the skin; the skin is of an umbrella-shaped structure; an umbrella cavity is formed below the skin; the airbags are symmetrically arranged in the skin; an umbrella top hole communicated with the umbrella cavity is formed in the top end of the skin; the top of the skin is connected with a guide umbrella through an auxiliary connecting cable; and the lower part of the skin is connected with an effective load cabin through a main connecting cable. When in use, the airship is put into use mainly in a high-altitude inflating expansion way, the airship body is unfilled with air, folded and compressed to have a smaller volume and carried to high altitude for jettison by a high-altitude aircraft or other equipment, the guide umbrella is used for driving the airship to open, and inflating equipment is used for inflating the airship body until certain pressure intensity is reached at the same time. The high-altitude inflating expansion way is particularly suitable for jettison of more airships in a certain domain range, and can effectively avoid side wind influence in a jettison process to enable the airship to accurately reach an appointed region.

Description

technical field [0001] The invention relates to a medium and small parachute airship and a control method thereof. Background technique [0002] The stratosphere is a general term for the space range from 20 kilometers to 100 kilometers above sea level. The "subspace", "super high altitude" and "high altitude" mentioned by Chinese academic circles also refer to this area. [0003] The stratosphere has different characteristics from ordinary space and aviation space. First of all, its meteorological conditions are better, with no clouds, rain, and atmospheric turbulence. The weather like thunderstorms and lightning is relatively rare, and the operating environment is relatively good. In addition, its altitude is special, and satellites cannot stay at such a low position. On the other hand, the air density is low, and the aircraft must fly at high speed to maintain this altitude. Therefore, compared with satellites and airplanes, stratospheric airship has its unique advanta...

AI Technical Summary

Problems solved by technology

There are some deficiencies in the use of this inflatable skeleton air-deployable airship, which are as follows: ①The inflatable skeleton is suitable for small and medium-sized airships, but in order to lift the airship, two high-altitude balloons need to be used to lift it into the air. The requirements for the connection of the rope are relatively high, and the two high-altitude balloons are pulled into the air, which is not conducive to the balance control of the hull and will also generate a large bending moment on the longitudinal structure of the hull; ②After reaching a certain height, the gas filled in the high-altitude balloon is difficult to recover , can only be allowed to fly away, and a lot of precious filling gas and expensive high-altitude balloons will be wasted every time it is released; ③When the airship descends, the airship can only be controlled by adjusting the amount of remaining gas inside to change the buoyancy. Generally, the controllable descent speed is relatively slow. However, small airships are more susceptible to crosswinds, so it is difficult to guarantee the stability of descent

Images