折叠式空中飞船可进洞穴,靠仿折纸结构实现刚性与可缩性的平衡。
CAVERNAUTE: a design and manufacturing pipeline of a rigid but foldable indoor airship aerial system for cave exploration
- 用折纸和Kresling结构设计可折叠的碳纤维骨架,提升抗冲击能力。
- 体积压缩比达19.8,能在狭小空间展开飞行,适配复杂洞穴环境。
- 提供从设计到制造的一体化流程,支持快速迭代测试新构型。
气艇因其优异的载荷/能量比,成为工程领域极具挑战性的研究对象。其建造与运行需在材料与规则间取得精妙平衡,融合物理、设计与创新,具备未来运输与探索的广阔潜力。得益于长航时特性,适合长期任务。为在室内复杂空间中运行,其蒙皮与机电系统需防碰撞。本文提出一种受折纸与Kresling图案启发的新型室内气艇设计。结构结合碳纤维外骨骼与紫外树脂微晶格,兼具强度与缓冲性能。该设计在保持刚性的同时可通过折叠进入狭窄区域,最大体积压缩比达19.8。为优化众多参数,提出涵盖设计、制造与装配的全流程管道,综合考虑制造约束、部署空间尺寸及浮力特性,实现新构型的快速测试。通过结合折纸与气艇设计,实现独特功能,降低任务失败风险。通过完整仿真验证了该设计可行性,采用轻量级机电系统实现有效控制策略,提升非结构化环境中探索任务的飞行自主性。
原文摘要 · Abstract (English)
Airships, best recognized for their unique quality of payload/energy ratio, present a fascinating challenge for the field of engineering. Their construction and operation require a delicate balance of materials and rules, making them a compelling object of study. They embody a distinct intersection of physics, design, and innovation, offering a wide array of possibilities for future transportation and exploration. Thanks to their long-flight endurance, they are suited for long-term missions. To operate in complex environments such as indoor cluttered spaces, their membrane and mechatronics need to be protected from impacts. This paper presents a new indoor airship design inspired by origami and the Kresling pattern. The airship structure combines a carbon fiber exoskeleton and UV resin micro-lattices for shock absorption. Our design strengthens the robot while granting the ability to access narrow spaces by folding the structure - up to a volume expansion ratio of 19.8. To optimize the numerous parameters of the airship, we present a pipeline for design, manufacture, and assembly. It takes into account manufacturing constraints, dimensions of the target deployment area, and aerostatics, allowing for easy and quick testing of new configurations. We also present unique features made possible by combining origami with airship design, which reduces the chances of mission-compromising failures. We demonstrate the potential of the design with a complete simulation including an effective control strategy leveraging lightweight mechatronics to optimize flight autonomy in exploration missions of unstructured environments.
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