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Model modified system based on multi-test state data

A technology of model correction and test state, applied in the field of virtual test, can solve the problem that the correction parameters cannot meet the correction target at the same time

Active Publication Date: 2015-08-19
CHINA ACAD OF LAUNCH VEHICLE TECH
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Problems solved by technology

If the model is corrected only for a single test state, there will be a problem that the correction parameters cannot meet the correction goals in each test state at the same time

Method used

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  • Model modified system based on multi-test state data
  • Model modified system based on multi-test state data
  • Model modified system based on multi-test state data

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Embodiment Construction

[0081] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0082] The architecture of a model correction system based on multi-test state data is as follows: figure 1 As shown, it includes multi-state physical test data import module, multi-state virtual test data import module, core data structure module, virtual-real test model matching module, test result correlation analysis module, sensitivity analysis module, multi-state model correction module, virtual model Update the solution module, 3D graph display module and matrix histogram display module.

[0083] A specific embodiment is to correct the material parameters of the test model through the modal test data of the three states. The test models of the three test states use the same orthotropic material, but the structural shapes are different. The test model in the first state is a flat plate structure, the x direction is the direction...

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Abstract

The invention relates to a model modified system based on multi-test state data, which is applied to perform comparison validation to virtuality and reality combination of a product structure parameter by synthesizing a plurality of state mechanical property test data in a structural design process and modify a virtual experiment model, and belongs to the technical field of virtual experiment. The model modified system based on the multi-test state data of the invention can be used for simultaneously modifying the virtual experiment model, virtual experiment results, a practical test model and practical test results under different test conditions by using the corrected parameter of the virtual experiment model and solve the problem that a response parameter is not enough to obtain unique solution of the corrected parameter under single test state.

Description

technical field [0001] The invention relates to a model correction system based on multi-test state data, which is suitable for combining multiple state mechanical characteristic test data in the process of structural design for virtual-actual combination comparison verification of product structural parameters and virtual test model correction, belonging to the technical field of virtual test. Background technique [0002] The testing and analysis of structural mechanical properties is an important part of the product development process, but traditional physical tests are difficult to verify all the use status, and finite element analysis also has topology, material properties, loads, constraints and model dimensions in the process of model building The reduction and other errors make it difficult to guarantee the accuracy of the analysis results. For this reason, in the process of testing and analyzing structural mechanical properties, limited test data is generally used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06F9/455
Inventor 刘维玮彭健张丽晔郭晶郭会章池元成郭爱民陆小兵王彦静郭大庆许昶毕经元贾倩
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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