G型三周期极小曲面结构导热性能研究  

Research on Thermal Conductivity of G-Type Three Period Minimally Curved Surface Structure

作　　者：刘宝昌 李庆棠 潘瑞新 LIU Bao-chang;LI Qing-tang;PAN Rui-xin(Beijing Xinfeng Aerospace Equipment Co.,Ltd,Beijing 100854,China)

机构地区：[1]北京新风航天装备有限公司,北京100854

出　　处：《世界有色金属》2024年第19期43-45,共3页World Nonferrous Metals

摘　　要：本文针对复杂周期胞元结构计算量大的难题,开展了G型极小曲面结构导热性能研究,研究了该结构等效热导率计算方法。基于稳态法测量热导率的原理对G型三周期极小曲面的热导率进行了等效计算,通过G型极小曲面与实体等效模型仿真分析结果对比,两者误差在1.5%以内。通过公式拟合,得到G型极小曲面结构等效热导率计算公式,与仿真结果对比,误差在2.5%以内,该公式可有效表征G型极小曲面结构等效热导率。In response to the problem of large computational complexity in complex periodic cell structures,this article conducted a study on the thermal conductivity of G-type minimal curved surface structures and studied the calculation method of their equivalent thermal conductivity.Propose a calculation method for equivalent thermal conductivity.Based on the principle of measuring thermal conductivity using the steady-state method,the equivalent thermal conductivity of the G-type minimal surface structure was obtained through simulation analysis;By comparing the simulation analysis results of the G-shaped minimal surface with the equivalent model of the solid,the error between the two is within 1.5%.By fitting the formula,the calculation formula for the equivalent thermal conductivity of the G-type minimal surface structure is obtained.Compared with the simulation results,the error is within 2.5%.This formula can effectively characterize the equivalent thermal conductivity of the G-type minimal surface structure.

关 键 词：极小曲面 等效热导率 稳态法 公式拟合 

分 类 号：TB21[一般工业技术—工程设计测绘]