Parametric simulation method based on moon ascender assembly

A parametric simulation and ascender technology, applied in the field of deep space exploration, can solve problems such as low design efficiency, achieve the effect of optimizing design, avoiding duplication of labor, and solving design efficiency problems

Active Publication Date: 2016-04-06
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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Problems solved by technology

[0005] In order to solve the problem of low design efficiency in the dynamic analysis of the ascender in the prior art, the present invention provides a parametric simulation method based on the lunar ascender assembly

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  • Parametric simulation method based on moon ascender assembly
  • Parametric simulation method based on moon ascender assembly
  • Parametric simulation method based on moon ascender assembly

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Embodiment Construction

[0032] The content of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0033] Step 1: Simplify the ascender model.

[0034] The ascender carries a variety of payloads, and the model is very complex, involving a variety of geometric dimensions. Therefore, before performing parametric simulation, the present invention firstly analyzes and simplifies the physical model of the ascender: considering that the payload on the ascender has fewer components and less mass, its influence on the acceleration of the base can be ignored. Therefore, it is possible to model only the main load-bearing structure of the riser, including the riser, riser tank, and supports. Evenly distributes the mass of the payload to the adjacent shell structure. The support and the support on the lower plate of the ascender are kinematically coupled and constrained by the ball strand unit. Since the main load-bearing plate and shell st...

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Abstract

The invention relates to a parametric simulation method based on a moon ascender assembly, and belongs to the technical field of deep space exploration. In order to solve the problem of low design efficiency in ascender kinetic analysis in the prior art, the invention provides the parametric simulation method based on the moon ascender assembly. The method combines finite element modeling, solution computation and result postprocessing into a whole, can generate a finite element grid model of each ascender assembly (which comprises an ascender and an ascender storage tank) and automatically finishes assembling, working condition setting, solution computation and result extraction. The automatic establishment of an ascender kinetic parametric model is realized, and repeated labor of design personnel due to remeshing and assembly connection relationship resetting caused by changing a certain feature size in the finite element modeling process of the ascender can be avoided.

Description

technical field [0001] The invention relates to a parametric simulation method based on a lunar ascender component, and belongs to the technical field of deep space exploration. Background technique [0002] After the development of earth application satellites and manned spaceflight, our country has kept pace with the times and launched deep space exploration activities focusing on lunar exploration in a timely manner. strategic significance. According to the overall plan of my country's lunar exploration project, my country's implementation of the lunar exploration project is envisaged to be divided into three stages: "circling, falling, and returning". In the third stage, the ascender will carry the task of safely transporting samples back to Earth, which is crucial for lunar exploration missions. [0003] Considering more mechanical factors, the establishment process of the finite element model of the ascender is very complicated, and any slight change in the configura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 周思达刘莉陈昭岳陈树霖
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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