BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Actuation of Adaptive Origami Structural Systems
DTSTART:20200409T160000
DTEND:20200409T170000
DTSTAMP:20260509T225728Z
UID:84fd4d153855cbf355c237a4b49c35a6eba81fb761ae5939e311dd2a
CATEGORIES:Conferences - Seminars
DESCRIPTION:Ann Sychterz is an assistant professor at the University of Il
 linois Urbana-Champaign in the structures group. She obtained her PhD in 2
 018 from the Swiss Federal Institute of Technology Lausanne (EPFL) that ad
 dressed the novel use of control algorithms\, statistical diagnostic tools
 \, and real-time feedback on a full-scale tensegrity structure to enable s
 mooth deployment\, damage detection\, adaptation\, and learning (https://y
 outu.be/FeXxjerleZE). During her masters of applied science obtained in 20
 14 at the University of Waterloo (UW)\, she built full-scale aluminum pede
 strian bridges for vibration characterization and control. She completed h
 er bachelor of applied science in civil engineering at the University of W
 aterloo in 2012. Before coming to the University of Illinois\, she complet
 ed a postdoctoral position at the University of Michigan through the succe
 ssful Swiss National Science Foundation Early. Postdoc Mobility grant that
  she authored on the actuator optimization of adaptive origami structures.
  Her research work focuses on designing\, building\, testing\, and simulat
 ing of structures that are adaptive\, lightweight\, large-scale\, resilien
 t\, and sustainable.\nCurrent infrastructure is designed to simultaneously
  comply with all possible loads and this leads to inefficiency in terms of
  energy and cost. Emerging computational methods for structural control ha
 ve enabled practical applications of adaptation such as for shape control 
 for civil engineering structures.\nLightweight and modular structures\, su
 ch as origami structural systems\, are ideal candidates for adaptive contr
 ol [1]. Adaptivity requires a diversity of movement through actuation to s
 atisfy performance criteria [2]. Origami structures\, such as those with a
  Miura-Ori fold pattern\, have one principle direction of kinematic freedo
 m where rigid foldability holds true. However rigid foldability is not app
 licable for motions such as twisting\, curling\, and bending that require 
 origami panels to bend [3-4].\nThe goal of this work is to develop an actu
 ator location algorithm with local and global shape-changes for an adaptiv
 e origami system. Test structures include four-module Miura-Ori structures
  in sheet and beam configurations that are constructed of heavy cardstock.
  Actuation is achieved through lengthening and shortening of cables attach
 ed to crease vertices of the Miura-Ori structures.\nOptimal actuator locat
 ions are evaluated based on the performance of roof and floor structural s
 ystems that undergo local and global shape-changes. Load cases discussed i
 n this work include static loads and moving point loads. Displacement valu
 es caused by the load cases are measured at crease vertices and are compar
 ed with simulation results. A statistical diagnostic tool is useful for ac
 tuator optimization to compare measured with simulated shape-changes of mo
 dular adaptive origami structures.\nThis interdisciplinary work on adaptiv
 e origami structural systems addresses a challenge with practical applicat
 ions in structural engineering by drawing from the fields of mechanical en
 gineering\, electrical engineering\, and architecture. Impact of this work
  on the engineering field is two-fold: building a feasible large-scale ori
 gami structural system and generalizing active control systems for impleme
 ntation in the construction industry.\n\nReferences\n[1] Sychterz\, A.C.\,
  Smith\, I.F.C. (2019). Damage Mitigation of Near-Full-Scale Deployable Te
 nsegrity Structure through Behavior Biomimetics\, Journal of Structural En
 gineering\, 146 (1)\, 1-13.\n[2] Reksowardojo\, A. P.\, Senatore\, G.\, & 
 Smith\, I. F. C. (2019). Experimental Testing of a Small-Scale Truss Beam 
 That Adapts to Loads Through Large Shape Changes\, Frontiers in Built Envi
 ronment\, (5) 93\, 1-16.\n[3] Grey\, S.\, Scarpa\, F.\, & Schenk\, M. (20
 18). Local Actuation of Tubular Origami. In Origami: Proceedings of the 7t
 h International Meeting on Origami in Science\, Mathematics and Education 
 (7OSME).\n[4] Sessions\, Deanna\, Ruff\, Joshua\, Fuchi\, Kazuko\, Cook\,
  Alexander\, S. Gillman\, Andrew\, Pankonien\, Alexander\, Buskohl\, Phili
 p\, and Huff\, Gregory. (2018). Coupled Structure-Electromagnetic Analysis
  of Embedded Electromagnetic Devices on Origami-inspired Adaptive Structur
 es.\, Antenna Applications Symposium\, Allerton\, IL
LOCATION:GC G1 515 https://plan.epfl.ch/?room==GC%20G1%20515
STATUS:CANCELLED
END:VEVENT
END:VCALENDAR