Improved 2D mass-spring-damper model with unstructured triangular meshes

In this paper, we investigate both the visual realism and the physical accuracy of the 2D mass-spring-damper (MSD) model with general unstructured triangular meshes for the simulation of rigid cloth. For visual realism, the model should, at a minimum, bend smoothly under pure bending load conditions...

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Bibliographic Details
Published in:The Visual computer 2008-01, Vol.24 (1), p.57-75
Main Authors: Wang, Xiuzhong, Devarajan, Venkat
Format: Article
Language:English
Subjects:
Accuracy
Artificial Intelligence
Bending
Computer Graphics
Computer Science
Constraint modelling
Continuum mechanics
Elastic plates
Finite element method
Image Processing and Computer Vision
Load
Mass-spring-damper systems
Original Article
Parameters
Realism
Springs (elastic)
Two dimensional models
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Summary:In this paper, we investigate both the visual realism and the physical accuracy of the 2D mass-spring-damper (MSD) model with general unstructured triangular meshes for the simulation of rigid cloth. For visual realism, the model should, at a minimum, bend smoothly under pure bending load conditions. For physical accuracy, it should bend approximately the same amount and shape as dictated by continuum mechanics. By matching the 2D MSD model with an elastic plate, we obtain a series of constraints on the parameters of the model. We find that for a 2D unstructured MSD model, it is necessary to apply preloads on the springs for accurate modeling of bending resistance. By simultaneously applying the constraints for both visual realism and physical accuracy, we can optimize the parameters of the model to enhance its fidelity. The simulation shows that the deformation of the optimized MSD model with preload is very close to the result obtained by the finite element method (FEM) under either point load condition or pressure load condition. With a much smaller computational burden compared with FEM, the optimized MSD model is especially suitable for real time haptic applications.
ISSN:0178-2789
1432-2315
DOI:10.1007/s00371-007-0179-7