织物模拟中的自适应网格剖分研究  

Cloth Simulation Based on Adaptive Meshing

作　　者：刘宁[1] 高成英[1] 罗笑南 

机构地区：[1]中山大学计算机应用研究所,广州510275

出　　处：《计算机科学》2004年第5期193-197,共5页Computer Science

基　　金：国家自然科学基金(60273063);广东省科技计划项目(A10204)

摘　　要：本文提出一种在织物模拟中的动态网格剖分方法,针对传统模拟算法中因网格剖分固定和曲面整体网格均匀剖分造成模拟误差与计算耗费,分别从织物物理和几何角度出发,提出在动态模拟过程中的自适应的网格剖分方法。利用模拟过程中曲面片局部形变信息,对网格进行动态剖分与合并,有效提高了模拟效率。经实际应用表明:该算法具有模拟效率高、易于计算机实现等优点,特别在对非均匀形变物体模拟中,该算法从模拟效率和精度均得到满意结果。Most of numerical simulation methods regarding cloth draping are based on mechanical models. The representation of these models is common to be a uniform grid. The problem regarding the simulation run is to represent realistically the mechanical system surface and its associated motion which are strongly related to mesh discretization. This paper presents a new method based on adaptive meshing allowing the mechanical system to behave without any constraint related to a uniform mesh. Both the physical and geometrical properties of cloth are to be considered in the method. The method dynamically meshes and unites grid by analyzing the local deformation information of cloth surface in cloth simulation,and will effectively improve the simulation efficiency. And the practical application proves that the simulation is fairly high efficiency and realistically. The simulation efficiency and precision are both satisfying especially in non-uniform deformation object simulation.

关 键 词：织物模拟 自适应 网格剖分 仿真模拟 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]