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Use of BIM and 3D Printing in Mars Habitat Design Challenge

机译:BIM和3D打印在火星人居设计挑战赛中的应用

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NASA's 3D Printed Habitat Challenge encouraged competitors to advance the technology for design and construction of surface facilities on Mars. The three phases of this competition took nearly five years to complete. In the final phase of the challenge, teams engaged in both physical and virtual creation of habitats. Virtual design and construction (VDC) of these facilities employed building information modeling (BIM) software to create a digital representation of a habitat suitable for occupation by four astronauts for one year. These digital models were exercised to display time-dependent virtual construction operations, often termed 4D BIM. The challenge also included physical construction operations that relied on autonomous 3D printing of simulated Martian concrete. Concrete is considered to be any material composed of aggregate and binder. Trial structures demonstrating the ability of teams to create foundations as well as pressure tight components were required. Ultimately teams had to print a 1∶3 scale prototype of the habitat modeled using BIM. All physical samples were tested to failure. This paper presents the protocol developed to deliver both the virtual and physical portions of the challenge. Results of the competition including digital models of habitats, physical tests of structural elements and components, and performance of 3D printing of one-third scale habitat prototypes are described and illustrated. Lessons learned from the five-year long habitat challenge are included.
机译:NASA的3D打印栖息地挑战赛鼓励竞争对手推进火星表面设施的设计和建造技术。这场比赛的三个阶段用了将近五年的时间才完成。在挑战的最后阶段,团队参与了栖息地的物理和虚拟创建。这些设施的虚拟设计和建造(VDC)使用建筑信息建模(BIM)软件创建适合四名宇航员居住一年的栖息地的数字表示。这些数字模型用于显示与时间相关的虚拟施工操作,通常称为4D BIM。挑战还包括依靠模拟火星混凝土的自动3D打印的物理施工作业。混凝土被认为是由骨料和粘合剂组成的任何材料。需要试验结构,证明团队有能力创建基础和耐压部件。最终,团队必须打印一个1∶使用BIM建模的栖息地的3比例尺原型。所有物理样品都进行了失败测试。本文介绍了为提供挑战的虚拟和物理部分而开发的协议。比赛结果包括栖息地的数字模型、结构元件和组件的物理测试,以及三分之一比例栖息地原型的3D打印性能。其中包括从为期五年的人居挑战中吸取的经验教训。

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