Level flight process average temperature calculating method of high altitude balloon with solar cell

Abstract

The invention provides a level flight process average temperature calculating method of a high altitude balloon with a solar cell. The method comprises the steps of calculating atmospheric environment parameters and thermal environment parameters of the high altitude balloon according to flight parameters of the high altitude balloon, design parameters of the high altitude balloon, balloon body material characteristic parameters of the high altitude balloon, characteristic parameters of the solar cell and characteristic parameters of cell thermal insulation materials, dividing the high altitude balloon into a plurality of joints on the basis of geometric characteristics and heat transfer patterns of the high altitude balloon, building energy differential equations of the joints, and calculating average temperature data of the joints in the level flight process of the high altitude balloon by solving energy differential equations of the joints of the high altitude balloon. The level flight process average temperature calculating method has the guiding significance in structural design of the high altitude balloon with the solar cell, material selection, flight test planning, potential risk avoidance and the like, the one-time success rate of the design of the high altitude balloon with the solar cell can be increased, the design period of the high altitude balloon with the solar cell can be shortened, and the design cost of the high altitude balloon with the solar cell can be lowered.

Description

technical field [0001] The invention belongs to the technical field of aerostat thermal control, in particular to a method for calculating the average temperature of a high-altitude balloon with solar cells during level flight. Background technique [0002] High-altitude balloons have the advantages of large load capacity, high resolution, and low cost. They have broad application prospects in the fields of early warning, surveillance and monitoring, civil communications, and scientific detection, and are highly valued by major powers in the world. [0003] During the level flight of high-altitude balloons, factors such as ambient temperature, density, pressure, wind speed, solar radiation, atmospheric radiation, and ground radiation will affect the temperature characteristics of high-altitude balloons. If the temperature is too high, it will increase the helium pressure inside the high-altitude balloon, which will have an important impact on the high-altitude balloon: 1. If...

AI Technical Summary

Problems solved by technology

If the temperature is too high, it will increase the helium pressure inside the high-altitude balloon, which will have an important impact on the high-altitude balloon: 1. If the temperature is too high, it will change the load-bearing characteristics of the high-altitude balloon material, increase the thermal stress of the high-altitude balloon, and increase the tension of the high-altitude balloon. The safety of the high-altitude balloon sphere poses a serious threat; 2. Changing the force status of the high-altitude balloon will cause the flight height of the high-altitude balloon to fluctuate and interfere with the high-altitude balloon's mission

Therefore, accurate knowledge of the temperature characteristics of high-altitude balloons during level flight is of great significance in the structural design of high-altitude balloons, material selection, flight test planning, and avoidance of potential hazards. Calculation Method of Average Temperature of Balloon in Level Flight

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