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DTSTAMP:20250110T023312Z
LOCATION:Hall B7 (1)\, B Block\, Level 7
DTSTART;TZID=Asia/Tokyo:20241204T163000
DTEND;TZID=Asia/Tokyo:20241204T164100
UID:siggraphasia_SIGGRAPH Asia 2024_sess123_papers_840@linklings.com
SUMMARY:Tencers: Tension-Constrained Elastic Rods
DESCRIPTION:Technical Papers\n\nLiliane-Joy Dandy, Michele Vidulis, Yingyi
 ng Ren, and Mark Pauly (EPFL)\n\nWe study ensembles of elastic rods that a
 re tensioned by a small set of inextensible cables. The cables induce forc
 es that deform the initially straight, but flexible rods into 3D space cur
 ves at equilibrium. Rods can be open or closed, knotted, and arranged in a
 rbitrary topologies. We specifically focus on equilibrium states with no c
 ontacts among rods. Our setup can thus be seen as a generalization of clas
 sical tensegrities that are composed of rigid rods and tensile cables, to 
 also support rods that elastically deform. We show how this generalization
  leads to a rich design space, where complex target shapes can be achieved
  with a small set of elastic rods. To explore this space, we present an in
 verse design optimization algorithm that solves for the length and placeme
 nt of cables such that the equilibrium state of the rod network best appro
 ximates a given set of input curves. We introduce appropriate sparsity ter
 ms to minimize the number of required cables, which significantly simplifi
 es fabrication. Using our algorithm, we explore new classes of bending-act
 ive 3D structures, including elastic tensegrity knots that only require a 
 few internal cables. We design and fabricate several physical models from 
 basic materials that attain complex 3D shapes with unique structural prope
 rties.\n\nRegistration Category: Full Access, Full Access Supporter\n\nLan
 guage Format: English Language\n\nSession Chair: Huamin Wang (Style3D Rese
 arch)
URL:https://asia.siggraph.org/2024/program/?id=papers_840&sess=sess123
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