Rapid modeling method for composite material tool compensation profile simulation verification

A composite material, simulation verification technology, applied in the field of rapid modeling of composite material tooling compensation profile simulation verification, can solve the problems of poor creation accuracy, troublesome operation, no correspondence of geometric theoretical profiles, etc., to improve verification efficiency and Accuracy, to achieve the effect of compensation effect comparison

Active Publication Date: 2020-12-29
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology

The creation process of this method is cumbersome, the creation accuracy is poor, and the profile needs to be re-imported into the simulation software for verification after the profile is created. At this time, the profile does not correspond to the geometric theoretical profile originally used for simulation. In the simulation It is difficult to directly evaluate the compensation effect, and it cannot be well adapted to the needs of rapid development of current projects

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  • Rapid modeling method for composite material tool compensation profile simulation verification

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Embodiment 1

[0032] This embodiment discloses a rapid modeling method for the simulation verification of composite material tooling compensation surface, refer to the attached figure 1 , mainly including the following steps:

[0033] Step S1: Simulation Analysis of Theoretical Model of Composite Material Parts

[0034] In the finite element software, the theoretical geometric model is modeled and simulated according to the simulation process, and the INP file of the theoretical geometric model is obtained;

[0035] Step S2: Post-processing of theoretical model simulation analysis results

[0036] In the post-processing of the finite element software, the relevant data information before and after the solidification and deformation of the theoretical geometric model is exported to form a data file;

[0037] Step S3: Processing Data Files

[0038] Identify the node, element, entity and other data in the node RPT file, element RPT file and simulation model INP file, and form a one-to-one c...

Embodiment 2

[0047] This embodiment discloses a rapid modeling method for the simulation verification of composite material tooling compensation surface. This embodiment is optimized on the basis of Embodiment 1. In the step S1, the mesh model of the part needs to be maintained The same stretch thickness, same stretch layer number and opposite stretch direction as tooling mesh model.

[0048] Further, in order to better realize this application, the data file in the step S2 refers to exporting the data information (node ​​and element) of all mesh nodes of the deformed part model and the film surface of the part to form a simulation result RPT file (Including node RPT file and element RPT file), which contains information such as the node coordinate value of the model, the relationship between nodes and elements, and the amount of deformation. At the same time, the INP for the simulation analysis of the theoretical model of the composite material part will be automatically generated in the c...

Embodiment 3

[0056] This embodiment discloses a rapid modeling method for the simulation verification of composite material tooling compensation surface, refer to the attached figure 1 , mainly including the following steps:

[0057] Step S1: Simulation Analysis of Theoretical Model of Composite Material Parts

[0058] In ABAQUS, the theoretical geometric model is modeled and simulated according to the simulation process, and the simulation model INP file of the theoretical geometric model is obtained.

[0059] In this embodiment, the simulation analysis software ABAQUS is used to divide the finite element mesh of the composite material parts, and the mesh model of the composite material parts and forming tooling is realized through the mesh part and offset functions, and the material parameters, process parameters and boundary constraints are set , to achieve simulation analysis of composite parts. After calculation and analysis, the simulation model INP file including all composite mat...

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Abstract

The invention relates to the technical field of composite material manufacturing and curing deformation simulation, and discloses a rapid modeling method for composite material tool compensation profile simulation verification. The method specifically comprises the following steps: establishing a theoretical geometric simulation model, and calculating to generate an INP file; post-processing the theoretical geometric simulation model, exporting information such as all nodes, film surface nodes and elements of the part, and generating an RPT file; identifying key element information in the RPTfile, and forming a one-to-one correspondence relationship with the INP file; calculating node and element information of the compensation model tool and the part; establishing a complete compensationmodel INP file; and importing into the simulation software again to submit the operation. The creation process of the tool compensation profile is simplified, the expected improvement effect of the tool compensation profile on the curing deformation of the composite part can be quickly verified, the verification efficiency and precision of the tool compensation model are improved, and the methodhas important significance for improving engineering application of the simulation technology.

Description

technical field [0001] The present application relates to the technical field of composite material manufacturing and solidification deformation simulation, in particular to a rapid modeling method for simulation verification of composite material tooling compensation profile. Background technique [0002] In order to solve the impact of composite material curing deformation on the final molding quality of components, the traditional solution is to repeatedly modify the profile of component forming tooling by using the trial and error method, that is, after the component is cured and deformed, modify the tooling profile of component forming, and try to manufacture the component again , if the deformation exceeds the requirements, continue to correct until the requirements are met. With the development of computer hardware and the advancement of simulation technology, it is very popular to carry out accurate simulation of composite material curing deformation, and create comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F113/26
CPCG06F30/23G06F2113/26
Inventor 蔡豫晋邹尧赵文琛胡业勤文友谊
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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