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为研究等腰梯形蜂窝芯玻璃钢夹芯板传热机制,利用导热仪对夹芯板的传热性能进行了实验测试与模拟研究。结果表明:夹芯板稳态导热系数模拟结果与Swann and Pittman经验公式的计算结果相吻合,验证了数值计算胞体平面模型的合理性;Part2为夹芯板稳态传热的主要构件,Part2胞壁厚度与边长对夹芯板导热系数有显著影响,Part2高度、Part1与Part3厚度及面板厚度对夹芯板导热系数的影响偏弱;同时,若仅需降低夹芯板的导热系数,而忽略对夹芯板静力学性能要求,应该更换蜂窝芯层材料;若需夹芯板同时满足隔热性能与静力学性能,多层蜂窝芯夹芯板是很好的选择。
In order to study the heat transfer mechanism of the isosceles trapezoidal honeycomb core FRP sandwich panel, the heat transfer performance of the sandwich panel was experimentally tested and simulated by the thermal conductivity meter. The results show that the simulation results of the steady-state thermal conductivity of the sandwich panel coincide with those of the Swann and Pittman empirical formula, which verifies the rationality of the numerical calculation of the planar body cell model. Part2 is the main component of the steady- The influence of Part2 height, Part1 and Part3 thickness and panel thickness on the thermal conductivity of the sandwich panel is weaker. At the same time, if only the thermal conductivity of the sandwich panel is to be reduced, Ignoring the static performance requirements of sandwich panels, the honeycomb core material should be replaced. If sandwich panels are required to satisfy both thermal and static properties, multilayer honeycomb sandwich panels are a good choice.