Simulation method for strengthening and lightening airship gasbag of stratospheric airship, and manufacturing method for stratospheric airship

Abstract

The invention provides a simulation method for strengthening and lightening an airship gasbag of a stratospheric airship, the stratospheric airship and a manufacturing method for the stratospheric airship. The simulation method comprises the following steps of (1), determining a basic shape of the stratospheric airship needed to be researched, and performing modeling on the shape; (2) performing simulation calculation to obtain airship gasbag surface stress distribution of the airship under a maximum overpressure condition; (3) according to related characteristics and a safety coefficient of an airship gasbag material, defining that an airship gasbag surface stress of the airship under the maximum overpressure condition is greater than a maximum safety stress, and serving as a reinforcement rib strengthening region; (4) selecting and using a proper reinforcement rib material to meet a lightweight requirement; arranging a plurality of reinforcement fiber ribs in circumferential and longitudinal directions in a simulated manner in the reinforcement rib strengthening region to strengthen the airship gasbag; and (5) after the airship gasbag is strengthened, performing simulation calculation again to obtain the airship gasbag surface stress distribution, and according to the maximum stress, selecting a proper low-density material to be applied to the airship gasbag.

Description

technical field [0001] The invention relates to the technical field of stratospheric airships, in particular to a simulation method for strengthening and lightening a capsule of a stratospheric airship, a stratospheric airship and a preparation method thereof. Background technique [0002] The stratospheric airship is a lighter-than-air aerostat that relies on air buoyancy to stay in the air, provides energy and power through solar energy, and has a propulsion system. Over any geographic location, the operating height exceeds the range of air traffic control, and is not affected by bad weather in the troposphere. It can work continuously all day long, with strong load capacity, high cost-effectiveness ratio, and wide detection range. It has a wide range of advantages in national defense and civilian applications. Application prospects. [0003] At present, domestic and foreign stratospheric airships are mainly soft airships, which are different from rigid and semi-rigid air...

AI Technical Summary

Problems solved by technology

For example, the prior art CN106240844A is a method for designing the strength of a stratospheric airship capsule. This invention accurately determines the thickness of the airship capsule according to the design formula of the stratospheric airship capsule strength, effectively reducing the design in the design theory of the stratospheric airship capsule strength. error, improve the reliability of the airship design, but this invention is to strengthen the entire area of ​​the surface of the airship, and it is difficult to take into account the light weight of the airship structure

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