Method for simulating temperature field and curing deformation of mold through finite element and mold optimization design method based on method

Through fine mesh division and multi-scale homogenization calculation, combined with thermal-solid coupling analysis, the mold design is optimized, which solves the problems of inaccurate prediction of mold temperature field and curing deformation, improves mold design accuracy and production efficiency, and ensures the quality of composite blades.

CN120633279APending Publication Date: 2025-09-12BEIJING COMPOSITE MATERIALS (TENGZHOU) CO LTD +1
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Patent Information

Application Number
CN202510569883.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

The existing technology uses inaccurate predictions of mold temperature field distribution and curing deformation, resulting in a large gap between mold design and actual operation during the manufacturing process of composite blades, affecting product quality and production efficiency.

Method used

The mold design is optimized by using fine mesh division method and multi-scale homogenization calculation, combined with the thermal-solid coupling analysis process. The mold temperature field and curing deformation are accurately simulated through ABAQUS software, and the mold structure and material selection are optimized by combining experimental verification.

Benefits of technology

It improves the accuracy of mold design and the controllability of the curing process, reduces testing costs and time, and improves the stability of the mold and the quality of composite products.

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Abstract

The invention discloses a method for simulating a mold temperature field and curing deformation through finite elements and a mold optimization design method based on the method. The finite element analogue simulation method comprises the following steps: firstly, modeling and simulating a mold grid; secondly, calculating equivalent thermal and mechanical parameters of the composite material by adopting a multi-scale homogenization method; then, a heat conduction model of the mold and the composite material blade is constructed and coupled with the curing dynamic model through temperature, and mold temperature distribution is simulated; and finally, establishing a mold thermal expansion and curing stress coupling model, and predicting thermal deformation and stress change of the mold. By identifying the weak area of the mold in the simulation process, the mold is optimally designed. By improving a mold temperature field distribution simulation method, optimizing a grid modeling process and introducing an accurate calculation method of equivalent material parameters, the precision of mold design and the controllability of a curing process are effectively improved, so that the problem of inaccurate mold temperature field distribution and curing deformation prediction is solved.
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