基于异构融合点阵的对流式主动冷却结构性能分析  

Performance Analysis of Convection Active Cooling Structure Based on Heterogeneous Fusion Lattice

作　　者：孙超 申鑫泽 宋康辉 李旭东[1] 汪小明 张长东[1] Sun Chao;Shen Xinze;Song Kanghui;Li Xudong;Wang Xiaoming;Zhang Changdong(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094;Beijing lnstitude of Remote Sensing Equipment,Beijing 100854)

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]北京遥感设备研究所,北京100854

出　　处：《航天制造技术》2025年第1期33-42,共10页Aerospace Manufacturing Technology

基　　金：国防基础科研项目(JCKY202*****033)。

摘　　要：三周期极小曲面(TPMS)点阵具有轻质、换热效率高及比强度高的特点,在对流式主动冷却结构中有着广泛的应用前景。由于TPMS点阵构型多种多样,其对应的热学性能以及流体流动特性也有所差异。为充分发挥不同结构的性能优势,本文通过流固耦合传热数值分析,对不同结构参数进行分析,结果可知TPMS点阵结构能够有效提升结构隔热性能,异构点阵的隔热性能主要取决于基础胞元类型以及其占比,合适的异构构型能够有效提升结构的温度均匀性,梯度优化能够有效提高结构隔热性能,却也表现出一定局限性。The triply periodic minimal surface(TPMS)lattice possesses the features of low weight,high heat exchange efficiency and high specific strength,and thus has extensive application prospects in convective active cooling structures.Due to the variety of TPMS lattice shapes,the corresponding thermal properties and fluid flow characteristics vary.In order to fully exploit the performance advantages of different structures,this paper analyses the different structural parameters through numerical fluid-solid coupled heat transfer analysis.This article analyzes different structural parameters through numerical analysis of fluid structure coupling heat transfer.The results show that TPMS lattice structure can effectively improve the thermal insulation performance of the structure.The thermal insulation performance of heterogeneous lattice mainly depends on the type and proportion of basic cells.The appropriate heterogeneous configuration can effectively improve the temperature uniformity of the structure.Gradient optimization can effectively improve the thermal insulation performance of the structure,but it also shows certain limitations.

关 键 词：异构点阵 主动冷却结构 数值模拟 热学性能 三周期极小曲面 

分 类 号：V435.14[航空宇航科学与技术—航空宇航推进理论与工程]