一种新型球面调和函数的柔性体仿真方法  

A novel flexible body simulation method based on spherical harmonic function and finite element

作　　者：查雁南 Zha Yannan(Wang Shian simulation studio,Guangzhou Institute of Technology,Guangzhou,Guangdong 510075,China)

机构地区：[1]广州工程技术职业学院王世安计算机仿真工作室,广东广州510075

出　　处：《计算机时代》2022年第10期51-54,共4页Computer Era

基　　金：广州市教育局高校科研项目:“高铁接触网柔性物体VR仿真模拟研究与实现”(202032814)。

摘　　要：提出一种新型的球面调和函数及有限元思想的仿真模拟方法,用于分析柔性体或非刚性物体在受到外力作用如碰撞过程中,受力而导致的形变。该方法考虑了柔性体形变大、可拉伸等特性,利用把柔性体离散化成有限个单元的方法,把柔性体分割成数量一定的六面体或四面体;然后使用不同的球面调和函数拟合被分割的柔性体不同单元,以此定量仿真模拟出柔性体的受力变形;最后将所有单元拼接起来而构成柔性体的整体仿真模拟模型。In this paper, a new simulation method based on spherical harmonic function and finite element idea is proposed to analyze the deformation of flexible or non-rigid objects under external force, such as force during collision. Considering its large deformation and stretchability, the flexible body is divided into a certain number of hexahedrons or tetrahedrons by discretizing it into a finite number of elements. Then different spherical harmonic functions are used to fit different elements of the divided flexible body, and the fitting parameters are adjusted to make it change accordingly, so as to quantitatively simulate the force and deformation of the flexible body. Finally, all the elements are spliced together to form the overall simulation model of the flexible body.

关 键 词：柔性体 虚拟现实 仿真模拟 有限元 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]