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Water-turbine generator set virtual assembly modeling method and system based on tree graph model

A technology for generating sets and virtual assembly, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as model storage and maintenance difficulties, complex assembly models, and difficulty in satisfying the real-time interactive virtual environment, etc., to achieve The effect of improving semantic search efficiency, simple structure, and meeting real-time requirements

Inactive Publication Date: 2012-11-07
HOHAI UNIV
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Problems solved by technology

[0003] The construction of assembly model is the key problem to be solved in virtual assembly simulation. The current virtual assembly model is mainly based on the hybrid relational graph model based on hierarchical model to express the virtual assembly process oriented to assembly design. This model has the characteristics of complete information expression and information integration. However, because the hybrid relational model mixes the hierarchical structure of the product and the expression of the assembly relationship between parts, the assembly model is too complex, and the real-time performance of virtual environment interaction is difficult to be satisfied.
At the same time, due to the strong coupling of the model, it is difficult to store and maintain the model

Method used

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  • Water-turbine generator set virtual assembly modeling method and system based on tree graph model
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  • Water-turbine generator set virtual assembly modeling method and system based on tree graph model

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Embodiment Construction

[0053] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0054] Virtual assembly simulation system for hydroelectric generator sets, such as figure 1 As shown, the following modules are included:

[0055] Parts management module: used to manage the initialization and updating of part information;

[0056] Semantic management module: used for semantic initialization and updating;

[0057] Scene management module: used for scene display management, including scene rendering and scene update;

[0058] Assembly model management...

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Abstract

The invention discloses a water-turbine generator set virtual assembly modeling method based on a tree graph model, and is used for simulation of water-turbine generator set virtual assembly. According to the method, the hierarchical structure of a water-turbine generator set and a semantic relation among parts are represented by adopting a mode that an assembly tree and a semantic relational graph are independent; a hierarchical assembly tree is constructed according to a designed structure of the water-turbine generator set in the form of a binary tree, so that structure hierarchicalization for the parts is realized; and a semantic relational graph is constructed according to a semantic constraint relation of the parts in the form of the binary tree. The invention also discloses a semantic identification and calculation method for guiding user interaction based on the molding method and a final water-turbine generator set virtual assembly simulation system. Compared with the prior art, the method and the system have the advantages of lightweight of an assembly model, interaction intellectualization and high interaction efficiency and are applicable to implementation of simulation of virtual assembly of various types of water-turbine generator sets.

Description

technical field [0001] The invention relates to a virtual assembly modeling method and system of a hydroelectric generating set based on a tree diagram model, which is used for virtual assembly simulation of a hydroelectric generating set and belongs to the technical field of virtual assembly simulation. Background technique [0002] Virtual assembly simulation is a technology that enables users to assemble and disassemble products through human-computer interaction by establishing a virtual assembly environment that is consistent with the actual production assembly environment. Scholars at home and abroad began to study virtual assembly technology in the 1990s. After more than ten years of development, great achievements have been made. [0003] The construction of assembly model is the key problem to be solved in virtual assembly simulation. The current virtual assembly model is mainly based on the hybrid relational graph model based on hierarchical model to express the vi...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 刘惠义郑源陆菁杨战军张智曹兆元王志超
Owner HOHAI UNIV
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