基于VR-CAD的碰撞检测方法在EAST三环套装虚拟仿真中的应用

运动对象间的碰撞检测和碰撞响应一直是可视化虚拟环境中主要的计算瓶颈,对于大型复杂对象进行精确、实时的装配仿真等工程应用中,其时间的开销是无法忍受的。笔者提出基于CAD 的虚拟场景的装配仿真,是让CAD 软件在后台做碰撞检测,通过通讯技术,在微机上实现前台的虚拟大场景、复杂部件装配仿真的实时可视化,大大地降低了碰撞检测的时间开销。同时提高了检测的精度,并在EAST 三环吊装仿真中得到成功应用。

Collision Detection Methods Based on VR-CAD Appling to EAST Virtual Assembly Simulation

Collision detection and collision response between moving objects is considered a major computational bottleneck in virtual environment, and its time consuming can not accepted in engineering application, for example, assemble simulation witch is accurate and real time between complicated objects. An assemble simulation in virtual environment based on CAD software is put forward in this paper, in other words, collision detection computational is finished in CAD environment of background, by communication technology, real time assemble visualization of complicated component is completed on the stage in PC, time consuming is consumedly reduced and detection accuracy is improved. This method has successfully been applied to EAST assemble simulation.