Versatile Structural Radiation Shielding and Thermal Insulation through Additive Manufacturing
Versatile Structural Radiation Shielding and Thermal Insulation through Additive Manufacturing
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通过增材制造实现多功能结构辐射屏蔽和隔热
DOI：
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发表时间：
2013
期刊：
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通讯作者：
L. Paritsky
中科院分区：
文献类型：
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作者：
J. Wrobel;R. Hoyt;Jesse Cushing;M. Jaster;N. Voronka;J. Slostad;L. Paritsky
在小卫星平台上使用商业现成(COTS)组件，如立方体卫星和纳米卫星，可以在负担得起的计划成本内实现作战任务能力，但需要注意的是，这些组件必须与空间环境隔离，或者预计寿命较短。复杂三维结构的附加制造的快速发展使以负担得起和反应迅速的方式制造航天器部件的新能力成为可能。在这篇文章中，我们介绍了我们采用添加剂制造技术来创造多功能结构的工作结果，这种结构可以提供与空间辐射和热环境的量身定制的隔离。这项工作开发了3D打印的方法，其材料具有适合在空间环境中使用的强度、耐温性和放气特性，以及将多种材料集成到该过程中以提供多功能功能。使用这些材料和工艺，我们开发了制造“多功能结构辐射屏蔽”(VSRS)和“结构多层屏蔽”(SMLI)的方法，VSRS是包含整体渐变Z辐射屏蔽的结构，“结构多层屏蔽”(SMLI)是包含整体隔热的组件。这些方法使具有复杂几何形状的航天器结构的响应制造成为可能，例如航空电子设备外壳、保形罩，甚至具有定制的辐射屏蔽、隔热、散热和EMI屏蔽的卫星外骨骼。
The use of Commercial Off-The-Shelf (COTS) components in SmallSat platforms such as CubeSats and nanosatellites can enable operational mission capabilities within affordable program costs, with the caveat that these components must either be isolated from the space environment or be expected to have short lifetimes. The rapid evolution of additive manufacturing of complex three-dimensional structures is enabling new capabilities for fabricating spacecraft components in an affordable and responsive manner. In this paper, we present results of our work adapting additive manufacturing technologies to create multifunctional structures that provide tailored isolation from the radiation and thermal environments of space. This work has developed methods for 3D printing with materials having strength, temperature tolerance, and outgassing characteristics suitable for use in the space environment, as well as for integrating multiple materials into the process to provide multifunctional capabilities. Using these materials and processes, we have developed methods for fabricating "Versatile Structural Radiation Shielding" (VSRS), structures that incorporate integral graded-Z radiation shielding, as well as "Structural Multi-Layer-Shielding" (SMLI), components that incorporate integral thermal insulation. These methods enable responsive fabrication of spacecraft structures with complex geometries, such as avionics enclosures, conformal covers, and even satellite 'exoskeleton' with tailored radiation shielding, thermal isolation, heat dissipation, and EMI shielding.