Optimization method and equipment for dock folded structural parts based on non-local homogenization modeling

Through the non-local homogenization modeling method, the simulation problem of non-local effects in the thermal management of the dock folding device structural parts was solved, more accurate thermal performance prediction and optimization were achieved, and the heat dissipation performance and safety of the structural parts were improved.

CN119720641BActive Publication Date: 2025-09-23CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
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Patent Information

Application Number
CN202411766267.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2024-06-04
Filing Date
2024-12-04
Publication Date
2025-09-23
Estimated Expiration
2044-12-04

AI Technical Summary

Technical Problem

In the existing thermal management of dock folding device structures, existing technologies are unable to effectively simulate and predict the thermal properties of complex materials, especially non-local effects, resulting in the inability to accurately describe key parameters such as temperature gradients, which affects the performance and life of the structures.

Method used

A method based on non-local homogenization modeling is adopted. By establishing a non-local heat conduction model and defining the non-local homogenization term, the temperature distribution of the metamaterial structure is calculated and optimized by combining the partial integration method and finite element tools. The non-local effects of the microstructure are considered to improve the accuracy of the heat transfer model.

Benefits of technology

It achieves more accurate simulation and prediction of the thermal performance of the dock's folded structural components, improves the accuracy and practicality of the heat transfer model, avoids overheating of the structural components, and improves safety.

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Abstract

The present invention discloses a method and apparatus for optimizing dock folding structures based on nonlocal homogenization modeling. The method comprises: establishing a nonlocal heat conduction model based on a three-dimensional homogenization problem with a temperature gradient only in the x-direction; defining a nonlocal homogenization term and using the integration by parts method to convert the nonlocal homogenization term of the x-direction temperature gradient into the form of a temperature difference between two surfaces obtained using a finite element tool, thereby obtaining a simplified model under uniform temperature field conditions; obtaining a heat conduction model that takes into account the effects of width and height; and obtaining an effective thermal conductivity formula based on a metamaterial structure with infinite dimensions in three directions using a multiscale method and periodic boundary conditions, calculating the temperature distribution of the metamaterial structure, and optimizing the metamaterial structure. The method can more accurately simulate and predict the thermal performance of complex materials at the microstructural scale, particularly when considering nonlocal effects, thereby improving the accuracy and practicality of the heat transfer model.
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