Geometry and behavior integrated three-dimensional modeling method for spacecraft

A modeling method and 3D modeling technology, applied in 3D modeling, instrumentation, image data processing, etc., can solve the problems of not being able to effectively support the integrated development of spacecraft products, and not being able to express complex aerospace products uniformly, so that the model is easy to Effects for modification, ease of modification, and enhanced realism

Inactive Publication Date: 2010-12-01
THE PLA INFORMATION ENG UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a three-dimensional modeling method integrating the geometry and behavior of spacecraft to solve the problem that the existing technology cannot uniformly express complex aerospace products at the system level and cannot effectively support the integration of the entire life cycle of spacecraft products development problem

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  • Geometry and behavior integrated three-dimensional modeling method for spacecraft
  • Geometry and behavior integrated three-dimensional modeling method for spacecraft
  • Geometry and behavior integrated three-dimensional modeling method for spacecraft

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Embodiment Construction

[0032] The steps of the three-dimensional modeling method integrating the geometry and behavior of the spacecraft of the present invention are as follows:

[0033] (1) Establish the primitive library of the geometric model of the spacecraft, which includes basic geometric primitives and reference primitives; each basic geometric primitive is a single model with a single geometric structure and set by parameters;

[0034] (2) Construct the model components of each part of the spacecraft from the primitive and its transformation combination;

[0035] (3) According to the spacecraft entity structure, use the tree data structure to connect the model components of each spacecraft component. The model component of each component is an independent node in the model, and each node of the model is connected by a tree structure. The hierarchical structure is connected together, the root node represents the whole model, and each connected node forms relative child nodes and parent nodes ...

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Abstract

The invention relates to a geometry and behavior integrated three-dimensional modeling method for a spacecraft. After the invention fully researches the geometric shape and behavior characteristics of the spacecraft, the invention provides the method by adopting layering modeling, model abstraction technique and computer graphics three-dimensional modeling to be combined with a molding theory. The method is simple and efficient, the model can be modified easily, the components can be transplanted and reused, and the method can be used for behavior modeling for the spacecraft, provides auxiliary means for designing and manufacturing the spacecraft, can realize reasonable unification between the three-dimensional geometrical model and the behavioral model of the spacecraft, can be applied to full life cycle and full system comprehensive management of complex aerospace products, analyzes complex products on the system layer, and supports development of the complex system from top to bottom.

Description

technical field [0001] The invention relates to spacecraft design and manufacturing technology, in particular to a three-dimensional modeling method integrating geometry and behavior of a spacecraft. Background technique [0002] Virtual prototype technology is a digital design method based on computer simulation models of products. These digital models are virtual prototypes, which simulate real products in terms of vision, hearing, touch, function and behavior. Virtual prototype technology is the development of various CAX (such as CAD, CAM, CAE, etc.) / DFX (such as DFA, DFM, etc.) technologies. It further integrates modern information technology, advanced manufacturing technology and advanced simulation technology, and applies these technologies to complex The whole life cycle of products, the whole system, and comprehensive management of them, analyze complex products from the system level, and support the "top-down" complex system development mode. As a brand-new produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/00
Inventor 姜挺徐青蓝朝桢周杨李建胜马东洋龚志辉邢帅何钰孙伟施群山张衡
Owner THE PLA INFORMATION ENG UNIV
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