A combined stratospheric flight system based on solar unmanned aerial vehicles for long periods of time

Abstract

The invention provides a long-airborne-period combined stratosphere aircraft system scheme based on solar unmanned aerial vehicles. The long-airborne-period combined stratosphere aircraft system scheme mainly comprises an airship and the solar unmanned aerial vehicles, wherein the airship part is used as an airborne relay platform and comprises an airbag body, a solar cell array, an arresting device, mounting devices, an internal temperature and pressure acquisition module, a pressure regulation valve and airship energy storage cells; the solar unmanned aerial vehicles are the core of the whole platform and each solar unmanned aerial vehicle mainly comprises a structure subsystem comprising an airplane stabilizer, an energy subsystem, an avionics flight control subsystem, a propulsion subsystem and a load subsystem. According to the system scheme, the large-sized airship is used as a mother ship and an airborne energy storage station and the multiple solar unmanned aerial vehicles are used as a task execution platform. An airborne support platform has the functions of the aerospace mother ship and an air refueling machine, so that effective weight loss of the solar aircraft platform is realized, meanwhile, and the non-stop flight time of the airplane at the height of 20 km or above is prolonged.

Description

technical field [0001] The invention provides an aircraft system, which belongs to the technical field of aerospace platform systems. Background technique [0002] With the further expansion of the field of aerospace technology, the stratospheric vehicle used for the combination of aviation and spaceflight has become the focus of research in various countries. Compared with traditional aircraft, the advantages of low-speed stratospheric aircraft are: (1) long time in the air and sustainable work. It is easy to obtain long-term and uninterrupted intelligence and data, and respond quickly to emergencies in a timely manner. (2) Wide coverage. A stratospheric vehicle flies at a higher altitude than a conventional aircraft and therefore covers a wider area than a conventional aircraft. (3) Strong survivability. Because the main components of balloons or blimps and some low-speed drones are made of non-metallic materials, the radar reflection cross section is very small, and t...

AI Technical Summary

Problems solved by technology

However, the problem of existing research is that if the stratospheric airship wants to achieve mission flight at a given altitude, the size and volume of the platform itself are too large, and it is difficult to achieve ultra-long endurance due to the seasonal variation of solar irradiated energy. The resident flight of the solar UAV is also unable to achieve long-term flight in the air due to the seasonal changes of the solar radiation intensity, and the change of the sunshine intensity in a day also requires the solar UAV to adjust its height to meet the flight needs.

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