Paneled Morphing Skins for A Full Shape Adaptive System

用于全形状自适应系统的镶板变形皮肤

• 批准号: RGPIN-2020-04355
• 负责人: Xi, Fengfeng
• 金额: $ 4.01万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=739913
• 关键词: Paneled; Morphing; Skins; Full; Shape

A full shape adaptive system, such as morphing wings, should contain a morphing structure covered by a morphing skin. In my last DG research, a methodology for designing a morphing structure has been developed. In this proposed DG research, the goal is to develop a morphing skin that must fulfill motion requirement by morphing it along with a morphing structure yet withstand a surface load. The objective of this program is to spearhead a research into a new panel morphing skin that is made of segmented panels, inspired by fish scales. This research program is proposed under three pillars to investigate three types of new panel skins and develop associated design and analysis methodologies. The first pillar is to design, model and analyze a sliding panel skin that is devised as a set of small panels through loose connections joined by a telescopic interlock system allowing them to move relative to each other. Further, smart materials, such as shape memory polymer (SMP), are used to join these panels. A new method will be developed to model this skin system considering a morphing structure as a driving system and a morphing skin as a driven system. The key is to provide a proper constraint model that can truly represent the connections among adjacent panels. An effective numerical method will be developed to solve the panel motions because the computational complexity increases as the number of panels increase. The second pillar is to design, model and analyze a multi-stable panel morphing skin. Through special treatment metallic/composite materials would exhibit bi-stable configurations, which have been used for shape morphing but focusing on a single patch. Our research is to develop a multiple-patch system to form a morphing skin with multi-stable configurations. Different from the first pillar design, this pillar design has all the patches closely connected. Though each patch has two definite stable principal axes, they will behave differently after connection. The key is how to model the boundary conditions among adjacent patches and predict the overall skin shape. The third pillar is to design, model and analyze a continuum panel morphing skin. Currently continuum robots have been researched by utilizing long and slender rods to form for example a snake robot. Our research is to use large, thin and flexible panels that can be deformed to fulfill shape morphing requirement. Though this pillar design may be the best among the three for practical use, it has some limitations. The key is to model the entire skin system that is statically indeterminate and coupled with rigid motion. At the end of this program, all three designs will be summarized in terms of pros and cons that can be used to guide panel morphing skin designs for different applications. The proposed research program will help train a number of graduate students in this emerging area and strengthen collaborations with the Canadian aerospace manufacturing industry.

完整形状的自适应系统（例如变形翅膀）应包含由变形皮肤覆盖的变形结构。在我上次的DG研究中，已经开发了一种设计变形结构的方法。在这项拟议的DG研究中，目标是开发出变形的皮肤，必须通过将其变形以及变形结构​​而且承受表面负荷来满足运动需求。该程序的目的是将研究启发到由小分段面板制成的新面板变形皮肤的研究，灵感来自鱼鳞。该研究计划是在三个支柱下提出的，以研究三种新型面板皮肤并开发相关的设计和分析方法。第一个支柱是设计，建模和分析滑动面板皮肤，该皮肤是通过宽松的连接而设计为一组小面板，该连接与望远镜互锁系统连接在一起，使它们可以相对移动。此外，智能材料（例如形状内存聚合物（SMP））用于加入这些面板。将开发一种新方法来对这种皮肤系统进行建模，以将变形结构作为驱动系统和变形皮肤作为驱动系统。关键是提供一个适当的约束模型，该模型可以真正代表相邻面板之间的连接。将开发一种有效的数值方法来解决面板运动，因为计算复杂性随着面板数量的增加而增加。第二个支柱是设计，建模和分析多稳定面板变形皮肤。通过特殊处理，金属/复合材料将表现出双稳定构型，这些构型已用于形状变形，但专注于单个斑块。我们的研究是开发一个多块系统，以形成具有多稳定构型的变形皮肤。与第一个支柱设计不同，该支柱设计的所有斑块都紧密连接。尽管每个贴片都有两个确定的稳定主轴，但连接后它们的行为会有所不同。关键是如何建模相邻斑块之间的边界条件并预测整体皮肤形状。第三个支柱是设计，建模和分析连续面板变形皮肤。目前，已经通过使用长而细长的杆形成蛇机器人来研究连续机器人。我们的研究是使用大型，薄而灵活的面板，这些面板可以变形以满足形状变形要求。尽管这种支柱设计可能是三个用于实际用途的最好的设计，但它有一些局限性。关键是对整个皮肤系统进行建模，该系统在静态不确定并与刚性运动结合在一起。在该计划的结尾，所有三个设计都将以优缺点进行总结，可用于指导面板变形皮肤设计的不同应用。拟议的研究计划将帮助培训这个新兴地区的许多研究生，并加强与加拿大航空制造业的合作。