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首页> 外文会议>55th International Astronautical Congress 2004 vol.3 >DEVELOPMENT OF LOW CTE CFRP FACESKIN HONEYCOMB SANDWICH PANEL WITH EMBEDDED HEAT PIPES
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DEVELOPMENT OF LOW CTE CFRP FACESKIN HONEYCOMB SANDWICH PANEL WITH EMBEDDED HEAT PIPES

机译：含热管的低CTE CFRP表皮蜂窝夹芯板的研制

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Two types of carbon fibers were selected for the sandwich panel faceskin from a trade off study. Using these carbon fibers, the fiber direction was designed appropriately by lamination theory to meet CTE requirements. After designing the faceskin, the CTE of the total honeycomb sandwich panel was evaluated with FEM analysis. Next, the thermal stress in a heat pipe panel was evaluated using an FEM model. The heat pipe/faceskin joint was critical for thermal stress because different types of materials are bonded together. In order to reduce the thermal stress, a low modulus adhesive was evaluated. A nearly full size (1m X 0.8m) CFRP faceskin heat pipe embedded panel demonstrator was built. This panel was evaluated in thermal expansion to verify that the CTE requirement was satisfied. Through these design and fabrication activities, a low CTE CFRP faceskin heat pipe embedded sandwich panel was successfully developed.rnHeat pipe embedded honeycomb sandwich panels provide extremely high thermal conductivity along the pipe direction, necessary for some structural panels of satellites that need high thermal transport capability. Instead of applying aluminum as the faceskin material, development of low CTE CFRP faceskin heat pipe embedded honeycomb sandwich panel is desirable to reduce total weight of panels.
机译：从权衡研究中选择了两种类型的碳纤维作为夹芯板的面皮。使用这些碳纤维，通过层压理论适当设计了纤维方向，以满足CTE要求。在设计了表皮之后，通过FEM分析评估了整个蜂窝夹芯板的CTE。接下来，使用FEM模型评估热管面板中的热应力。因为不同类型的材料粘合在一起，所以热管/面皮接头对于热应力至关重要。为了降低热应力，评估了低模量粘合剂。建造了一个几乎全尺寸（1m X 0.8m）的CFRP面皮热管嵌入式面板演示器。对该面板进行了热膨胀评估，以验证其是否满足CTE要求。通过这些设计和制造活动，成功开发了低CTE CFRP面皮热管嵌入式夹芯板。 。代替使用铝作为面皮材料，期望开发低CTE CFRP面皮热管嵌入蜂窝状夹心板以减轻板的总重量。

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