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On the problem of determination of spring stiffness parameters for spring-mesh models
Huynh Quang Huy Viet1, Shinichi Hirai, Yoshiaki Shirai
1Computer Vision and Graphics Laboratory, Department of Information and Computer Science, Saitama University, Saitama, Japan.
Abstract:
On account of having real-time behavior and being easy to implement, spring meshes have been used for modeling deformable objects. Determining spring stiffness parameters for simulation of soft objects with high accuracy still remains a challenge. Allen Van Gelder derived an approximate formula for determining spring stiffness parameters based on strain analysis. Even though the experimental result showed the effectiveness, the method has not been investigated from a quantitative point of view. In this paper we propose a quantitative method for determining spring stiffness parameters. Moreover we propose a method to improve the accuracy by way of introducing torsional spring into the conventional spring mesh model.
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