耐高温隔热材料组合结构模拟研究与试验验证

以热防护系统隔热组合结构中不同隔热材料厚度尺寸为计算变量,以飞行器主结构温度极值即最低背面温度为目标参数,以组合结构中第二层材料最高使用温度为约束条件建立隔热组合结构模型,并进行了石英灯考核验证。采用通用软件ANSYS 进行一维瞬态有限元热分析,将模型计算结果和试验结果进行了全面对比,各项数据吻合良好。

High Temperature Resistant Heat Insulating MaterialSimulation and Experimental Verification

Using different heat insulating materials thickness in the heat insulating composite structure of the

heat protection system as the design variables, the temperature extremes of aircraft main structure (the minmum back

temperature) as the target parameters, the maximum use temperature of the second layer material in the composite

structure as the constraint condition, the heat insulating composite structure model is extablished and verified by the

quartz lamp check test. Using ANSYS software for one-dimensional finite element transient thermal anslysis, the model

calculated results are comprehensive compared with the experimental results, all the data are found in good agreement.

It has a certain theoretical guiding significance to the similar thermal insulation structure design and process optimization.