Title
Identification of spring parameters for deformable object simulation.
Abstract
Mass spring models are frequently used to simulate deformable objects because of their conceptual simplicity and computational speed. Unfortunately, the model parameters are not related to elastic material constitutive laws in an obvious way. Several methods to set optimal parameters have been proposed, but so far only with limited success. We analyze the parameter identification problem and show the difficulties, which have prevented previous work from reaching wide usage. Our main contribution is a new method to derive analytical expressions for the spring parameters from an isotropic linear elastic reference model. The method is described and expressions for several mesh topologies are derived. These include triangle, rectangle and tetrahedron meshes. The formulae are validated by comparing the static deformation of the MSM with reference deformations simulated with the finite element method.
Year
DOI
Venue
2007
10.1109/TVCG.2007.1055
IEEE Trans. Vis. Comput. Graph.
Keywords
Field
DocType
isotropic linear elastic reference,spring parameters,mass spring model,analytical expression,spring parameter,model parameter,deformable object,finite element method,computational speed,deformable object simulation,new method,conceptual simplicity,linear elasticity,mathematical model,force,parameters,static,elastic deformation,computer graphics,mass spring system,reference model,finite element methods,computational modeling,identification,finite element analysis,parameter estimation,constitutive law
Applied mathematics,Isotropy,Mathematical optimization,Polygon mesh,Reference model,Effective mass (spring–mass system),Computer science,Rectangle,Finite element method,Theoretical computer science,Linear elasticity,Parameter identification problem
Journal
Volume
Issue
ISSN
13
5
1077-2626
Citations 
PageRank 
References 
44
1.83
18
Authors
3
Name
Order
Citations
PageRank
Bryn Lloyd1441.83
Gábor Székely225435.35
Matthias Harders31187.85