{"491961":{"#nid":"491961","#data":{"type":"news","title":"Reconfigurable Origami Tubes Could Find Antenna, Microfluidic Uses","body":[{"value":"\u003Cp\u003EOrigami, the ancient art of paper folding, may soon provide a foundation for antennas that can reconfigure themselves to operate at different frequencies, microfluidic devices whose properties can change in operation \u2013 and even heating and air-conditioning ductwork that adjusts to demand.\u003C\/p\u003E\u003Cp\u003EThe applications could result from reconfigurable and reprogrammable origami tubes developed by researchers at three institutions, including the Georgia Institute of Technology. By changing the ways in which the paper is folded, the same tube can have six or more different cross sections. Though the models are now reconfigured by hand, magnetic or electrical actuators could make the changes when the tubes are used in real-world applications.\u003C\/p\u003E\u003Cp\u003EThe tubes can be folded flat for shipping, and made in a range of sizes from the nanoscale up to architectural scale. By developing the mathematical theory behind the folding, the researchers can design tubes with the exact properties needed for electrical engineers, civil engineers or other users. The tubes employ the Miura-ori pattern, one of many unique patterns used in origami.\u003C\/p\u003E\u003Cp\u003E\u201cWe have developed a new type of origami tube that is reconfigurable to many different cross sections,\u201d said \u003Ca href=\u0022http:\/\/www.cee.gatech.edu\/people\/Faculty\/6709\/overview\u0022\u003EGlaucio Paulino\u003C\/a\u003E, a professor in the Georgia Tech\u0026nbsp;\u003Ca href=\u0022http:\/\/www.cee.gatech.edu\/\u0022\u003ESchool of Civil and Environmental Engineering\u003C\/a\u003E. \u201cWe have also developed a mathematical theory that goes along with it that allows us to design the tubes and predict how they can be reconfigured or reprogrammed.\u003C\/p\u003E\u003Cp\u003EThe research was supported by the National Science Foundation and reported January 27th in the journal \u003Cem\u003EProceedings of the Royal Society A\u003C\/em\u003E. In addition to Paulino, the research team included Evgueni Filipov, a graduate student at University of Illinois at Urbana-Champaign and University of Tokyo professor Tomohiro Tachi.\u003C\/p\u003E\u003Cp\u003EFabricating the tubes begins by scoring paper in a device that resembles a computer printer. A special type of cutter in the device follows the researchers\u2019 computer program to make cuts partially through the heavy paper by controlling the cutting speed and cutter force. The cuts facilitate folding and gluing the components to make the tubes, which can be folded flat and then expanded.\u003C\/p\u003E\u003Cp\u003EThe innovation by the research team was to design folds have two options. One fold might create a section of paper that bulges out of the tube, like a mountain range \u2013 and alternatively can create a valley in the tube. These variations allow the different configurations to be selected, each producing a slightly different cross section.\u003C\/p\u003E\u003Cp\u003E\u201cThe cross section of each one is different, the area of the tube is different and the properties of the tube are different,\u201d said Paulino. \u201cThe ability to create different cross sections is critical, especially for multi-physics applications such as deployable origami coupled with active or responsive materials.\u201d\u003C\/p\u003E\u003Cp\u003EAmong the potential applications are reconfigurable tubes that could carry electromagnetic energy and function as antennas. Different folds would allow them to operate at different frequencies, an application with potential military and commercial interest.\u003C\/p\u003E\u003Cp\u003E\u201cYour phone has an antenna designed to work at a specific frequency,\u201d explained Paulino. \u201cIf you needed the phone to work at a different frequency, right now you would need a different device. With this reconfigurable capability, we could obtain different antenna configurations in the same device with the same origami tube antenna.\u201d\u003C\/p\u003E\u003Cp\u003EOther applications could range from tiny microfluidic tubes able to switch liquids, to engineering and architectural-scale applications in ductwork, piping and even structures to provide shade for buildings during hot parts of the year.\u003C\/p\u003E\u003Cp\u003EThough they\u2019re made of paper, the origami tubes can be designed to be quite strong and to support heavy loads, while being easily foldable when not in use. In practical applications, the tubes would be made from flexible polymers or other materials.\u003C\/p\u003E\u003Cp\u003EOrigami structures have been made for a long time, but what Paulino and his collaborators bring to the field is a mathematical understanding and theory that allows them to apply an engineering approach to the development of the new tube configurations.\u003C\/p\u003E\u003Cp\u003E\u201cWe have a complete mathematical theory that allows us to see how many cross sections each tube would allow,\u201d he said. \u201cThe theory is very powerful. We now have the math, the theory and the prototypes to demonstrate the ideas. We can program these polygonal tubes to create almost any shape.\u201d\u003C\/p\u003E\u003Cp\u003EIn future work, Paulino and his collaborators would like to establish an actuation mechanism to redeploy the tubes when needed. The system could be operated using magnetized structures, or by electronic means.\u003C\/p\u003E\u003Cp\u003E\u201cWe are working toward coupling these reconfigurable capabilities with a programmable function that would allow us to activate the folds remotely,\u201d he said. \u201cWe would be able to switch among the different configurations at will.\u201d\u003C\/p\u003E\u003Cp\u003EIn September 2015, the same research team reported developing a new \u201czippered tube\u201d origami configuration that makes paper structures stiff enough to hold weight yet able to fold flat for easy shipping and storage. Their method could be applied to other thin materials, such as plastic or metal, to transform structures ranging from furniture and buildings to microscopic robots.\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003EThis research was partially supported by the National Science Foundation (NSF) under grant CMMI-1538830. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Science Foundation.\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECITATION\u003C\/strong\u003E: E.T. Filipov, G.H. Paulino and T. Tachi, \u201cOrigami tubes with reconfigurable polygonal cross-sections,\u201d (Proceedings of the Royal Society A, 2016). \u003Ca href=\u0022http:\/\/dx.doi.org\/10.1098\/rspa.2015.0607\u0022\u003Ehttp:\/\/dx.doi.org\/10.1098\/rspa.2015.0607.\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr \/\u003E\u003Cstrong\u003EResearch News\u003C\/strong\u003E\u003Cbr \/\u003E\u003Cstrong\u003EGeorgia Institute of Technology\u003C\/strong\u003E\u003Cbr \/\u003E\u003Cstrong\u003E177 North Avenue\u003C\/strong\u003E\u003Cbr \/\u003E\u003Cstrong\u003EAtlanta, Georgia 30332-0181 USA\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMedia Relations Contact\u003C\/strong\u003E: John Toon (404-894-6986) (\u003Ca href=\u0022mailto:jtoon@gatech.edu\u0022\u003Ejtoon@gatech.edu\u003C\/a\u003E)\u003Cbr \/\u003E\u003Cstrong\u003EWriter\u003C\/strong\u003E: John Toon\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EOrigami, the ancient art of paper folding, may soon provide a foundation for antennas that can reconfigure themselves to operate at different frequencies, microfluidic devices whose properties can change in operation \u2013 and even heating and air-conditioning ductwork that adjusts to demand.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Origami may soon provide a foundation for antennas that can reconfigure themselves to operate at different frequencies."}],"uid":"27303","created_gmt":"2016-01-27 22:32:29","changed_gmt":"2016-10-08 03:20:31","author":"John Toon","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2016-01-27T00:00:00-05:00","iso_date":"2016-01-27T00:00:00-05:00","tz":"America\/New_York"},"extras":[],"hg_media":{"491941":{"id":"491941","type":"image","title":"Reconfigurable origami","body":null,"created":"1454083200","gmt_created":"2016-01-29 16:00:00","changed":"1475895248","gmt_changed":"2016-10-08 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tubes","file":{"fid":"204478","name":"fig4_local_bending.png","image_path":"\/sites\/default\/files\/images\/fig4_local_bending_0.png","image_full_path":"http:\/\/tlwarc.hg.gatech.edu\/\/sites\/default\/files\/images\/fig4_local_bending_0.png","mime":"image\/png","size":1700715,"path_740":"http:\/\/tlwarc.hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/fig4_local_bending_0.png?itok=ADhp-z4s"}},"491951":{"id":"491951","type":"image","title":"Kinematics of tubes","body":null,"created":"1454083200","gmt_created":"2016-01-29 16:00:00","changed":"1475895248","gmt_changed":"2016-10-08 02:54:08","alt":"Kinematics of tubes","file":{"fid":"204472","name":"kinematic_recon.png","image_path":"\/sites\/default\/files\/images\/kinematic_recon_0.png","image_full_path":"http:\/\/tlwarc.hg.gatech.edu\/\/sites\/default\/files\/images\/kinematic_recon_0.png","mime":"image\/png","size":1231151,"path_740":"http:\/\/tlwarc.hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/kinematic_recon_0.png?itok=CyVOf2eh"}}},"media_ids":["491941","492051","492061","491951"],"groups":[{"id":"1188","name":"Research Horizons"}],"categories":[{"id":"137","name":"Architecture"},{"id":"153","name":"Computer Science\/Information Technology and Security"},{"id":"145","name":"Engineering"},{"id":"135","name":"Research"}],"keywords":[{"id":"140701","name":"Glaucio Paulino"},{"id":"4332","name":"origami"},{"id":"169854","name":"origami tubes"},{"id":"169856","name":"reconfigurable origami"}],"core_research_areas":[{"id":"39531","name":"Energy and Sustainable Infrastructure"},{"id":"39471","name":"Materials"}],"news_room_topics":[{"id":"71881","name":"Science and Technology"}],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EJohn Toon\u003C\/p\u003E\u003Cp\u003EResearch News\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022mailto:jtoon@gatech.edu\u0022\u003Ejtoon@gatech.edu\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E404-894-6986\u003C\/p\u003E","format":"limited_html"}],"email":["jtoon@gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}