Simulation method for strengthening and lightening airship gasbag of stratospheric airship, and manufacturing method for stratospheric airship
A technology of a stratospheric airship and a simulation method, which is applied in the field of large stratospheric airships, can solve problems such as difficulty in taking into account the lightweight of the airship structure, and achieve the effect of achieving lightweight goals, reducing technical difficulties, and accurate positioning.
Active Publication Date: 2017-07-07
北京天恒长鹰科技股份有限公司
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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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[0032] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0033] According to the embodiment of the present invention, a simulation method that takes into account both the strengthening and lightening of the airship capsule in the stratosphere is proposed, such as figure 2 , including the following steps:
[0034] (1) Model the basic shape of the airship: the basic shape of the stratospheric airship is a typical oblong ellipse convoluted structure, select a certain convolute contour curv...
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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...
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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20Y02A90/10
Inventor 赵磊
Owner 北京天恒长鹰科技股份有限公司
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