Bionic stratospheric airship

Abstract

The invention provides a bionic stratospheric airship, and belongs to the technical field of aircraft design. The shape of a hull of the stratospheric airship is obtained according to the shape setting out of a portuguese man-of-war. The hull is internally provided with more than one main airbag, more than one auxiliary airbag and a heat-regulating airbag. The main airbags are filled with gas withthe density lower than air, the main airbags are disposed on an upper layer in the hull, and first gas valves are arranged on the upper parts of the main airbags. The auxiliary airbags are filled with the air, the auxiliary airbags are disposed on a lower layer in the hull, and second gas valves and blowers are arranged at the bottoms of the auxiliary airbags. The heat-adjusting airbag is arranged in a middle layer in the hull, and the heat-regulating airbag is internally provided with a thermal cycle device. The heat-regulating airbag is filled with a gas-liquid reversible control working medium. Under the working conditions of super-thermal and over-pressure, the working medium is converted from a gaseous state to a liquid state by the thermal cycle device, and the working medium is converted from the liquid state to the gaseous state by the thermal cycle device under the ultra-cold working condition.

Description

technical field [0001] The invention belongs to the technical field of aircraft, and in particular relates to a bionic stratospheric airship. Background technique [0002] Stratospheric airship, as the main form of near-space aerostat, can effectively make up for the shortage of current aviation and aerospace equipment, and has broad application prospects in military and civilian fields. Existing stratospheric airship technical schemes mainly include two categories of single-vessel schemes and main and auxiliary airbag schemes. [0003] Single-capsule solutions, such as the "High-altitude Sentinel" airship; [0004] The "High Altitude Sentinel" airship has only one main airbag, which is a single-bag solution. During the lifting process, the main airbag expands or compresses freely, without mass exchange with the outside world. In special cases, small buoyancy and pressure adjustments are achieved by releasing helium or throwing ballast. Without reversible buoyancy and pres...

AI Technical Summary

Problems solved by technology

Although this solution overcomes the shortcomings of a single capsule, it only has a single adjustment method of "air mass flow rate", which cannot effectively solve the problems of "super cold" and "super hot"; and the suction and exhaust flow rates of fans and valves are limited, so it cannot be realized Efficient buoyancy and pressure regulation

In addition, the "main and auxiliary airbag" scheme usually adopts the shape of an ellipsoidal rotator, which has a large volume, large inertia, and large aerodynamic damping

[0007] On the one hand, the stratospheric airship, as a "hot aircraft", changes greatly in the atmospheric environment parameters during the process of launching, staying in the area, and descending and returning. The phenomenon of "overheating" causes large changes in buoyancy, pressure and flight state parameters, which has a serious impact on flight control and safe operation

On the other hand, as a "lighter-than-air aircraft", the stratospheric airship has a low flight speed, and its flight path is significantly affected by wind field disturbances

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