Mass-Spring Model Deformation Simulation Based on Weight Vector

Author(s):  
Zhen Zhang ◽  
Liling Peng ◽  
Dengshuai Guo
2009 ◽  
Vol 29 (9) ◽  
pp. 2386-2388 ◽  
Author(s):  
Jian LI ◽  
Peng-kun LI ◽  
Qiu-jun LIAO

2013 ◽  
Vol 310 ◽  
pp. 676-683 ◽  
Author(s):  
Jian Dong Yang ◽  
Shu Yuan Shang

The crucial problem in cloth simulation based on Physical model is how to solve the motion differential equations. Mass spring model is ideal and it is widely used in cloth simulation. The simulation technology of cloth modeling based on mass spring model is presented completely, fabric mechanics models are established precisely, and several kinds of explicit numerical integration are compared in detail, especially, using RK-4 method can greatly improve system’s stability. This cloth simulation method is applied to cloth software. Examples have proved that this method is advanced and practical.


Author(s):  
Wenqing Huang ◽  
Jing Hu ◽  
Keqiang Yu ◽  
Yaming Wang ◽  
Mingfeng Jiang

2021 ◽  
Vol 16 ◽  
pp. 155892502110125
Author(s):  
Sha Sha ◽  
Anqi Geng ◽  
Yuqin Gao ◽  
Bin Li ◽  
Xuewei Jiang ◽  
...  

There are different kinds of geometrical models and physical models used to simulate weft knitted fabrics nowadays, such as loop models based on Pierce, piecewise function, spline curve, mass-spring model, and finite element analyses (FEA). Weft knitting simulation technology, including modeling and yarn reality, has been widely adopted in fabric structure designing for the manufacturer. The technology has great potentials in both industries and dynamic virtual display. The present article is aimed to review the current development of 3-D simulation technique for weft knitted fabrics.


Author(s):  
Salina Sulaiman ◽  
Tan Sing Yee ◽  
Abdullah Bade

Physically based models assimilate organ-specific material properties, thus they are suitable in developing a surgical simulation. This study uses mass spring model (MSM) to represent the human liver because MSM is a discrete model that is potentially more realistic than the finite element model (FEM). For a high-end computer aided medical technology such as the surgical simulator, the most important issues are to fulfil the basic requirement of a surgical simulator. Novice and experienced surgeons use surgical simulator for surgery training and planning. Therefore, surgical simulation must provide a realistic and fast responding virtual environment. This study focuses on fulfilling the time complexity and realistic of the surgical simulator. In order to have a fast responding simulation, the choice of numerical integration method is crucial. This study shows that MATLAB ode45 is the fastest method compared to 2nd ordered Euler, MATLAB ode113, MATLAB ode23s and MATLAB ode23t. However, the major issue is human liver consists of soft tissues. In modelling a soft tissue model, we need to understand the mechanical response of soft tissues to surgical manipulation. Any interaction between haptic device and the liver model may causes large deformation and topology change in the soft tissue model. Thus, this study investigates and presents the effect of varying mass, damping, stiffness coefficient on the nonlinear liver mass spring model. MATLAB performs and shows simulation results for each of the experiment. Additionally, the observed optimal dataset of liver behaviour is applied in SOFA (Simulation Open Framework Architecture) to visualize the major effect.


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