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基于DDA的碰撞检测及碰撞仿真
引用本文:赵晓飞,王颖.基于DDA的碰撞检测及碰撞仿真[J].计算机仿真,2009,26(5).
作者姓名:赵晓飞  王颖
作者单位:中国科学院研究生院计算与通信工程学院,北京,100049
摘    要:碰撞检测是基于物理的动画,计算机辅助没计,计算机辅助制造,计算几何,虚拟现实,机器人等领域必须解决的关键问题,目前仍是研究热点.非连续变形分析方法是一种较新的土木工程领域的数值模拟技术,可以分析不连续块体的运动.将非连续变形分析方法引入到基于物理动厕领域.在计算辅助设计软件设计的虚拟物理场景下,仿真了汽车撞墙和车辆相撞.仿真结果显示:应用非连续变形分析方法可以成功的实现精确的碰撞检测和模拟真实的碰撞响应,在不连续变形、多块体碰撞仿真方面有较大优势.

关 键 词:基于物理动画  非连续变形分析  碰撞检测  碰撞响应  数值计算

Collision Detection and Simulation Based on DDA
ZHAO Xiao-fei,WANG Ying.Collision Detection and Simulation Based on DDA[J].Computer Simulation,2009,26(5).
Authors:ZHAO Xiao-fei  WANG Ying
Affiliation:College of Computing and Communication Engineering;Graduate School of the Chinese Academy of Sciences;Beijing 100049;China
Abstract:Collision detection(CD) is the key problem that must be solved in physics-based animation,CAD/CAM,computing geometry,VR,robotics area,and it is still the research hotspot now.The discontinuous deformation analysis method(DDA) which is a new numerical simulation technique,can analyze discontinuous blocks behavior.This paper introduces DDA into physics-based animation area,uses CAD to design the physics scene in the virtual world,and simulates vehicle against walls and vehicles collision scene.The simulation ...
Keywords:Physics-based animation  DDA  Collision detection  Collision response  Numerical calculation  
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