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Complex product heterogeneous model fusing method

A technology of heterogeneous models and fusion methods, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of difficult integration and fusion of heterogeneous system models

Active Publication Date: 2016-03-23
CENT SOUTH UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a complex product heterogeneous model fusion method to solve the problem of difficult integration and fusion of complex product heterogeneous system models, provide an effective way for product multi-disciplinary multi-performance analysis and evaluation, and can effectively improve complex products Design efficiency, shorten complex product development cycle, greatly improve product competitiveness

Method used

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Embodiment 1

[0089] Figure 4 The result of fusing dovetail groove information for the upper surface of the fandisk model.

[0090] in Figure 4 (a) is the point cloud model of the dovetail slot in the heterogeneous system, Figure 4 (b) is the basic body model expressed by voxels, and each vertex of the basic unit contains the distance field attribute. In this paper, the distance field information of the voxel model is displayed by the horizontal and vertical sections, and the results are as follows: Figure 4 As shown in (d) and (e), the lighter color in the middle part of the picture indicates the interior of the model, the darker color around the picture indicates the outside of the model, and the other colors are the intermediate transition part, that is, the surface boundary.

[0091] By discretizing the dovetail groove information voxels, then initializing the distance field attributes, and using the static distance field difference operation, the dovetail groove information can b...

Embodiment 2

[0095] Blade design involves multiple disciplines such as solid modeling, surface modeling, structural statics, modal analysis, fluid dynamics, and heat and mass transfer. When analyzing the aerodynamic performance of the blade, only the overall shape of the blade needs to be considered; when analyzing the heat dissipation performance of the blade, it is important to consider the distribution and number of cooling holes and slots in the model; when analyzing the anti-leakage performance of the blade, the The face profile groove feature needs to be considered. Therefore, it is necessary to build a variety of models with different structural characteristics in the simulation analysis of blade products. In addition, there are a large number of point cloud models of processing measurement and structural topology optimization models, which constitute the blade heterogeneous model system library.

[0096] The present invention takes the fusion of heterogeneous models in blade design...

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Abstract

The invention discloses a complex product heterogeneous model fusing method. The method is mainly prepared through the following steps of firstly, extracting geometric feature and processing shape and position error information of a product model at different stages; secondly, establishing a voxel model of product uniform expression through a voxelization method; thirdly, establishing mapping of distance field intersection, subtraction and complementation operation and speed field operation functions and heterogeneous model primitive feature, shape and position error and high-grade feature operation; fourthly, fusing product heterogeneous primitive feature and processing shape and position error information into the voxel model; fifthly, reestablishing a voxel model surface model through a movable cuboid method so that the visual expression of the fused model can be achieved. The unified framework of product heterogeneous information processing is provided, heterogeneous model fusing integration and uniform visual expression in different CAX systems are achieved, the effective approach of product multi-major and multi-performance analysis and evaluation is provided, complex product design efficiency can be effectively improved, the complex product development cycle can be shortened, and product competitiveness can be greatly improved.

Description

technical field [0001] The invention belongs to a product digital geometric modeling method, in particular to a complex product heterogeneous model fusion method. Background technique [0002] In the process of product design and manufacturing, various modeling, simulation and analysis systems such as CAD, CAM and CAE need to be used, which will generate a large number of digital product models with partial information. However, the unique requirements of each system in a single field and the current situation that it is difficult to unify the standard of commercial system software format make it difficult to integrate and integrate a large number of heterogeneous model information of a single part product. [0003] At present, researchers mainly use file format unification and geometric feature processing to realize the integration of heterogeneous system models. The file format unification method mainly realizes heterogeneous model transformation and system integration th...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/367
Inventor 易兵杨岳李雄兵刘冲高广军田红旗
Owner CENT SOUTH UNIV
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