題目：基於折紙和剪紙的厚板折疊方法 (Origami- and kirigami-adapted thick-panel folding)

報告人：楊景宜 博士 牛津大學

時間：2023年7月28日9:00-10:00

線下報告地點：狗万manbetxb 湖濱會議室

線上參與方式：Join Zoom Meeting

https://us02web.zoom.us/j/89643063072?pwd=VHZUa3JNMTROQXFKNmJaVWRsR0oxUT09

Meeting ID: 896 4306 3072

Passcode: 132425

主持人/聯係人：李洋 研究員（yang.li@whu.edu.cn）

摘要：

具有有限厚度的平麵陣列廣泛用於航天應用，例如太陽能電池板和反射陣列天線。它們需要被打包成小體積以便火箭發射，然後在太空軌道上展開。本次報告將介紹一類可使厚度均勻且具有鉸鏈的剛性麵板實現緊湊折疊的方法，並且其可以通過可預測的方式展開成連續的平麵。實現“可預測的展開”是通過基於厚板剪紙的特殊幾何設計來形成具有單自由度的機構，或者是通過對多自由度機構的動力學模擬以及優化來確保無碰撞展開。

Flat arrays with a finite thickness are widely used in aerospace applications such as solar panels and reflectarray antennas. They need to be packaged into small volumes for launch and subsequently deployed in the orbit. This talk will discuss folding rigid panels of uniform thickness into a compact volume and deploying it back to a continuous and flat surface in a predictable manner afterwards. This can be achieved by either forming an assembly with a single degree-of-freedom (DoF) through special geometric designs of thick-panel kirigami or ensuring a collision-free deployment of a multiple-DoFs system through dynamics simulations.

主講人簡介：

楊景宜，牛津大學博士，現任牛津大學工程係博士後、基布爾學院研究員和助教。在此之前，她在新加坡南洋理工大學獲得學士學位。她的研究重點是基於折紙和剪紙的可展開結構設計，這些結構能夠經曆大且可逆的形狀變化。楊博士尤其感興趣約束這些結構幾何大變形的基本原理，也包括這些可展結構在不同荷載下的力學性質。一些潛在應用包括太空天線和太陽能電池陣列、小應變波能轉換器和超材料等。

Jingyi Yang is a postdoctoral researcher at department of Engineering Science, Oxford and a Research Fellow and Tutor at Keble College, Oxford. Her research focuses on the design and analysis of origami- and kirigami-adapted deployable structures. These structures have the ability to undergo large, reversible shape changes. Specifically, Jingyi is interested in investigating the fundamental principles that govern the large geometrical changes of these structures, as well as their mechanical behaviour under various loading conditions. Some potential applications of Jingyi’s work include space antennas and solar arrays, small-strain wave energy converters, and metamaterials.