期刊
SMART MATERIALS AND STRUCTURES
卷 28, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-665X/ab0ea2
关键词
ultralight; adaptable structure; aeroelastic; programmable materials; shape morphing; cellular materials
资金
- NASA ARMD Convergent Aeronautics Solutions Program (MADCAT Project)
- NASA STMD Game Changing Development Program (ARMADAS Seedling Project)
- NASA Ames Research Center (ARC)
- NASA Langley Research Center (LaRC)
Ultralight materials present an opportunity to dramatically increase the efficiency of load-bearing aerostructures. To date, however, these ultralight materials have generally been confined to the laboratory bench-top, due to dimensional constraints of the manufacturing processes. We show a programmable material system applied as a large-scale, ultralight, and conformable aeroelastic structure. The use of a modular, lattice-based, ultralight material results in stiffness typical of an elastomer (2.6 MPa) at a mass density typical of an aerogel (5.6 mg/cm(3)) This, combined with a building cm: block based manufacturing and configuration strategy, enables the rapid realization of new adaptive structures and mechanisms The heterogeneous design with programmable anisotropy allows for enhanced elastic and global shape deformation in response to external loading, making it useful for tuned fluid-structure interaction. We demonstrate an example application experiment using two building block types for the primary structure of a 4.27 m wingspan aircraft, where we spatially program elastic shape morphing to increase aerodynamic efficiency and improve roll control authority, demonstrated with full-scale wind tunnel testing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据