BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:Asia/Tokyo
X-LIC-LOCATION:Asia/Tokyo
BEGIN:STANDARD
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
TZNAME:JST
DTSTART:18871231T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260817T171532Z
LOCATION:Hall B5 (1)\, B Block\, Level 5
DTSTART;TZID=Asia/Tokyo:20241204T171600
DTEND;TZID=Asia/Tokyo:20241204T172800
UID:siggraphasia_SIGGRAPH Asia 2024_sess121_papers_210@linklings.com
SUMMARY:mpcMech: Multi-Point Conjugation Mechanisms
DESCRIPTION:Ke Chen (University of Science and Technology of China), Siqi 
 Li and Peng Song (Singapore University of Technology and Design (SUTD)), J
 ianmin Zheng (Nanyang Technological University (NTU)), and Ligang Liu (Uni
 versity of Science and Technology of China)\n\nA mechanism is an assembly 
 of moving parts interconnected by joints to transfer an input motion to a 
 desired output motion. Traditionally, to generate a complex motion, mechan
 isms are modeled by selecting and combining a number of mechanical parts w
 ith simple shapes such as links, gears, and cams. Combining multiple mecha
 nical parts results in a mechanism with an intricate topology, which not o
 nly complicates assembly and maintenance but also deteriorates the functio
 nality of generating motions due to accumulation of manufacturing imprecis
 ions. To get rid of these limitations, we study mechanisms with a single p
 air of moving parts for generating complex motions. We model the pair of m
 oving parts as a pair of conjugate surfaces with multiple conjugation poin
 ts, forming a multi-point conjugation mechanism.\n\nTo study this new mech
 anism, we establish a connection between conjugate surface pairs and form-
 closure grasps to formulate a dynamic form closure condition under which o
 ne conjugate surface is able to continuously transfer the motion to the ot
 her conjugate surface by utilizing multiple conjugation points. Guided by 
 the condition, we propose an optimization-based approach to model the geom
 etry of a multi-point conjugation mechanism for exactly generating a user-
 specified motion, in 1-, 2-, or 3-DOF motion space. The core of our approa
 ch is to model multiple conjugate curve pairs that satisfy various require
 ments in multi-point conjugation, dynamic form closure, and surface fabric
 ability. We demonstrate the effectiveness of our approach by modeling diff
 erent classes of multi-point conjugation mechanisms to generate various mo
 tions, evaluating the mechanisms’ kinematic performance with 3D printed pr
 ototypes, and presenting three applications of these mechanisms.\n\nRegist
 ration Category: Full Access, Full Access Supporter\n\nLanguage Format: En
 glish Language\n\nSession Chair: Nobuyuki Umetani (University of Tokyo)\n\
 n
URL:https://asia.siggraph.org/2024/program/?id=papers_210&sess=sess121
END:VEVENT
END:VCALENDAR