My husband spotted this reference to a paper in the Proceedings of the National Academy of Science of the USA. http://www.pnas.org/content/early/2017/11/21/1713450114.full - Shuguang Li, doi: 10.1073/pnas.1713450114 -
The most specific origami references seem to be in this passage: " A 90% linear contraction can be produced by an origami skeleton using a symmetrical zigzag geometry (Fig. 3*A* <http://www.pnas.org/content/early/2017/11/21/1713450114.full#F3>). A skeleton using a standard Miura-ori origami pattern is able to generate a 2D surface contraction (92% contraction ratio) when a vacuum is applied (Fig. 3*B* <http://www.pnas.org/content/early/2017/11/21/1713450114.full#F3>). A 3D skeleton using the water-bomb origami pattern can transform a spherical structure to a cylindrical structure (91% contraction ratio) (Fig. 3*C* <http://www.pnas.org/content/early/2017/11/21/1713450114.full#F3>). Using an asymmetrical arrangement of the voids, a bending motion can be produced on a beam-shaped skeleton (Fig. 3*D* <http://www.pnas.org/content/early/2017/11/21/1713450114.full#F3>). A flasher origami skeleton can generate a rotation (>>90°) and a 54% contraction simultaneously using a single vacuum supply (Fig. 3*E* <http://www.pnas.org/content/early/2017/11/21/1713450114.full#F3>)." There's also a reference to: 1. ↵ <http://www.pnas.org/content/early/2017/11/21/1713450114.full#xref-ref-44-1> 1. Overvelde JT, et al. (2016) A three-dimensional actuated origami-inspired transformable metamaterial with multiple degrees of freedom. Nat Commun 7:10929. . CrossRef <http://www.pnas.org/external-ref?access_num=10.1038/ncomms10929&link_type=DOI> Medline <http://www.pnas.org/external-ref?access_num=26965475&link_type=MED>Google Scholar <http://scholar.google.com/scholar_lookup?title=A%20three-dimensional%20actuated%20origami-inspired%20transformable%20metamaterial%20with%20multiple%20degrees%20of%20freedom&author=JT%20Overvelde&publication_year=2016&journal=Nat%20Commun&volume=7&pages=10929> I'm curious to know how many of the authors are paperfolders -- and how many models decorate their labs! Karen Karen Reeds, co-ringleader Princeton Public Library Origami Group Affiliate of Origami USA, http://origamiusa.org/ We usually meet 2nd Wednesday of the month, 6:30-8pm, 3rd floor. Free! We provide paper! All welcome! (Kids under 8, please bring a grown-up.) Princeton Public Library info: 609.924.9529 https://princetonlibrary.org/ Celebrating 12 years of paperfolding in Princeton! Our next meeting: Wednesday, December 13, 2017 (holiday origami) Karen Reeds karenmre...@gmail.com
