Raiders and lightweight simulation methods and preparation methods of the boat capsule of the flat straton 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 a stratospheric airship, in particular to a simulation method for strengthening and lightweighting of a stratospheric airship capsule, a stratospheric airship and a preparation method thereof. Background technique [0002] A stratospheric airship is a lighter than air aerostat. It relies on air buoyancy to stay in the air, provides energy power for it through solar energy, and has a propulsion system. It can achieve vertical take-off and landing without relying on airports or runways, and can hover in the air. Over any geographical location, the operating altitude exceeds the air traffic control range, and is not affected by severe tropospheric weather. It can work continuously all day and all day, with strong load capacity, high cost-effectiveness ratio, and wide detection range. It has a wide range of national defense and civil applications. Application prospects. [0003] At present, stratospheric airships a...

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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