Fast simulation of quasistatic rod deformations for VR applications
- Summary. We present a model of exible rods | based on Kirchhoff\\\'s geometrically exact theory | which is suitable for the fast simulation of quasistatic deformations within VR or functional DMU applications. Unlike simple models of \\\"mass & spring\\\" type typically used in VR applications, our model provides a proper coupling of bending and torsion. The computational approach comprises a variational formulation combined with a nite dierence discretization of the continuum model. Approximate solutions of the equilibrium equations for sequentially varying boundary conditions are obtained by means of energy minimization using a nonlinear CG method. The computational performance of our model proves to be sucient for the interactive manipulation of exible cables in assembly simulation.
Author: | J. Linn, T. Stephan, J. Carlsson, R. Bohlin |
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URN: | urn:nbn:de:hbz:386-kluedo-15681 |
Series (Serial Number): | Berichte des Fraunhofer-Instituts für Techno- und Wirtschaftsmathematik (ITWM Report) (143) |
Document Type: | Report |
Language of publication: | English |
Year of Completion: | 2008 |
Year of first Publication: | 2008 |
Publishing Institution: | Fraunhofer-Institut für Techno- und Wirtschaftsmathematik |
Creating Corporation: | Fraunhofer ITWM |
Date of the Publication (Server): | 2008/07/23 |
Tag: | Kirchhoff\\\'s geometrically theory; energy minimization; finite difference discretization; mass & spring |
Faculties / Organisational entities: | Fraunhofer (ITWM) |
DDC-Cassification: | 5 Naturwissenschaften und Mathematik / 510 Mathematik |
Licence (German): | Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011 |