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Hybrid, multiresolution wires with massless frictional contacts
Umeå University, Faculty of Science and Technology, Department of Physics. (UMIT)
Umeå University, Faculty of Science and Technology, High Performance Computing Center North (HPC2N).
Umeå University, Faculty of Science and Technology, High Performance Computing Center North (HPC2N). (UMIT)
2011 (English)In: IEEE Transactions on Visualization and Computer Graphics, ISSN 1077-2626, E-ISSN 1941-0506, Vol. 7, no 7, 970-982 p.Article in journal (Refereed) Published
Abstract [en]

We describe a method for the visual interactivesimulation of wires contacting with rigid multibodies. Thephysical model used is a hybrid combining lumped elementsand massless quasistatic representations. The latter is basedon a kinematic constraint preserving the total length of thewire along a segmented path which can involve multiple bodiessimultaneously and dry frictional contact nodes used for roping,lassoing and fastening. These nodes provide stick and slidefriction along edges of the contacting geometries. The lumpedelement resolution is adapted dynamically based on local stabilitycriteria, becoming coarser as the tension increases, and up to thepurely kinematic representation. Kinematic segments and contactnodes are added and deleted and propagated based on contactgeometries and dry friction configurations. The method givesdramatic increase on both performance and robustness becauseit quickly decimates superfluous nodes without loosing stability,yet adapts to complex configurations with many contacts andhigh curvature, keeping a fixed, large integration time step.Numerical results demonstrating the performance and stabilityof the adaptive multiresolution scheme are presented along withan array of representative simulation examples illustrating theversatility of the frictional contact model.

Place, publisher, year, edition, pages
Los Alamitos: IEEE Computer Society, 2011. Vol. 7, no 7, 970-982 p.
Keyword [en]
Computer graphics, three-dimensional, graphics and realism, animation, virtual reality, adaptive resolution, strands, wires, physics simulation, dry frictional contacts
National Category
Computational Mathematics Other Physics Topics Applied Mechanics
Identifiers
URN: urn:nbn:se:umu:diva-33669DOI: 10.1109/TVCG.2010.122ISI: 000290167100009OAI: oai:DiVA.org:umu-33669DiVA: diva2:317085
Available from: 2011-02-18 Created: 2010-05-02 Last updated: 2017-12-12Bibliographically approved

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Servin, MartinLacoursière, ClaudeBodin, Kenneth
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Computational MathematicsOther Physics TopicsApplied Mechanics

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Citation style
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