基于PI的隔热保温结构工装有限元分析  

Finite Element Analysis of Thermal Insulation Structure Tooling Based on PI

作　　者：杨海燕 袁森 蒋宏婉[3] 岳熙[3] YANG Haiyan;YUAN Sen;JIANG Hongwan;YUE Xi(Guizhou Open University(Guizhou Vocational Technology Institute),Guiyang 550023,China;College of Mechanical Engineering,Guizhou Institute of Technology,Guiyang 550025,China;College of Mechanical Engineering,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州开放大学(贵州职业技术学院),贵州贵阳550023 [2]贵州理工学院机械工程学院,贵州贵阳550025 [3]贵州大学机械工程学院,贵州贵阳550025

出　　处：《机械与电子》2025年第3期66-73,共8页Machinery & Electronics

基　　金：贵州省科技计划项目(黔科合支撑[2021]一般340);贵州省科技计划项目(黔教技[2023]040);贵州理工学院高层次人才科研启动经费项目(2023GCCZK)。

摘　　要：为研究航空航天工装箱体结构的内外蒙皮外表面附加聚酰亚胺泡沫材料后的隔热保温效果,建立工装内蒙皮、外蒙皮和隔热保温材料聚酰亚胺计算模型,在稳态和瞬态条件下对箱外60℃、-45℃和箱内空气温度0、22℃的工装内部隔热保温效果进行有限元仿真分析。分析结果表明:高温60℃环境中,结构工装外蒙皮平均温度趋于高温环境温度,工装箱内平均温度约为35℃,验证了外附聚酰亚胺材料的结构工装有良好的隔热效果;低温-45℃环境中,结构工装箱体内部温度达到平衡时,箱体内部的平均温度约为-10℃,验证了隔热保温结构工装具有显著的保温效果。In order to study the thermal insulation effect of aerospace tooling box structure after attaching polyimide foam to the outer surface of the inner and outer skins,the calculation model of tooling inner skin,outer skin and thermal insulation material polyimide is established.Besides,the finite element simulation and analysis of the thermal insulation effect under the tooling temperature inside the box at 60℃and-45℃outside the box and the air temperature of the box at 0 and 22℃in steady state and transient conditions are carried out.The analysis results show that in the high temperature environment(60℃),the average temperature of the outer skin of the structural tooling tends to be close to the high temperature environment temperature,and the average temperature inside the tooling box is about 35℃,which verifies that the structural tooling attached with the polyimide material has a good thermal insulation effect.Under the low temperature environment(-45℃),when the temperature inside the structural tooling box reaches the equilibrium,the average temperature inside the box is about-10℃,which verifies that the thermal insulation structure tooling has a significant thermal insulation effect.

关 键 词：隔热保温 聚酰亚胺 有限元分析 结构工装 

分 类 号：TH122[机械工程—机械设计及理论] TQ323.7[化学工程—合成树脂塑料工业]