Simulation of a mass-spring model for global deformation

doi:10.1007/s11460-009-0001-6

Front Elect Electr Eng Chin

0, Vol.

Issue () : 78-82 https://doi.org/10.1007/s11460-009-0001-6

RESEARCH ARTICLE

Simulation of a mass-spring model for global deformation

Tong CUI(

), Aiguo SONG, Juan WU

College of Instrument Science and Engineering, Southeast University, Nanjing 210096, China

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Abstract

This article addresses a largely open problem in haptic simulation and rendering: contact force and deformation modeling for haptic simulation of a discrete globe mass-spring model, especially for global deformation. The mass-spring system is composed of nodes connected with radially distributed springs. We tackle the problem using the theory of virtual work, and relations between the virtual force and nodal displacements are analyzed to obtain elastic deformations. The global deformation is controlled by the total nodal deformations based on a force equation at each node. The simulation results verify the efficiency of the contact force and deformation model with reasonable realism.

Keywords mass-spring model virtual reality haptic feedback

Corresponding Author(s): CUI Tong,Email:cuitong_seu@yahoo.com.cn

Issue Date: 05 March 2009

Cite this article:

Tong CUI,Aiguo SONG,Juan WU. Simulation of a mass-spring model for global deformation[J]. Front Elect Electr Eng Chin, 0, (): 78-82.

URL:

https://academic.hep.com.cn/fee/EN/10.1007/s11460-009-0001-6
https://academic.hep.com.cn/fee/EN/Y0/V/I/78

Fig.1 Overview of the approach (one time step per loop)

Fig.2 Mass-spring model surface

Fig.3 Virtual spring deformation model

Fig.4 First mesh force analysis

Fig.5 Experimental system principle diagram

Fig.6 Experimental system control

Fig.7 Virtual liver deformations

Fig.8 Relationships between hierarchy of spring meshes and deformation by a different force
Note: These values about relationships between the meshes hierarchies and their deformations are only proportional and dimensionless.

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