一种液化天然气低温柔性管道复合结构优化设计方法、系统及存储介质

By acquiring measured temperature data and identifying and generating a parameterized interface model, the problem of low simulation accuracy in the design of cryogenic flexible pipelines for liquefied natural gas in existing technologies is solved, achieving high-precision optimized design and ensuring the reliability of design results and their engineering guidance value.

CN121328216BActive Publication Date: 2026-07-17ZHEJIANG SCI-TECH UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG SCI-TECH UNIV
Filing Date
2025-10-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the finite element analysis model for cryogenic flexible pipelines of liquefied natural gas simplifies the heat transfer behavior of the material interface, resulting in low simulation prediction accuracy, poor reliability of optimization design results, and an inability to truly reflect the physical nature and dynamic changes of the interface, leading to inaccurate design.

Method used

By acquiring measured steady-state temperature distribution data of single material interfaces in composite structures, a parameterized interface model is identified and generated. The measured data is then used to scientifically match the heat transfer model, construct a high-fidelity global thermal performance analysis model, and use the high-precision interface model for iterative optimization during the design process.

Benefits of technology

It improves the accuracy of simulation prediction and the reliability of optimization design. The obtained structural design parameters can effectively guide actual production, avoid blind searching based on erroneous data, and ensure the accuracy and feasibility of the design.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供一种液化天然气低温柔性管道复合结构优化设计方法、系统及存储介质,包括以下步骤:获取复合结构中单一材料界面的实测稳态温度分布数据集;计算数据特征参数;将所数据特征参数与预设在模型特征库中的判断准则进行比较;根据比较结果,从模型特征库中选择一个数据特征参数范围与计算出的数据特征参数相符的界面传热模型;计算得出该界面传热模型的关键传热参数,从而生成能够定量表征该单一材料界面在轴向压力工况下传热性能的参数化界面模型;构建复合结构的全局热性能的有限元分析模型;执行预设的优化算法,获得一组最优的结构设计参数。本发明解决现有技术中存在的仿真预测精度低、优化设计结果可靠性差的技术问题。
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