摘要： 仿真培训系统是虚拟现实技术在专业技术教学和训练中的重要应用，碰撞检测是许多仿真培训系统实现过程中不可缺少的一部分。该文介绍了门式仿真培训系统中系统几何模型的建立过程以及利用固定方向包围盒（FDH）实现系统的碰撞检验。

关键词: 门式起重机, 仿真培训, 固定方向包围盒

Abstract: Simulation training system is an important application of virtual reality technology in fields of professional technique teaching and training, and collision detection is needed in many systems of it. This article discusses the construction of geometrical modeling in simulation training system for portal crane and the implementation of collision detection by the use of fixed direction hull(FDH).

中图分类号: 

• TP391.9