论文部分内容阅读
为提高自由曲面数控加工仿真的效率和精度,提出一种基于层次细节模型(LOD)控制的自由曲面数控加工仿真新方法.本算法采用Z-map模型表达工件,设计并实现了基于三角形二叉树的切削算法.采用了基于三角形二叉树的LOD模型控制数控加工实时显示过程中渲染的多边形数量,减少不必要的计算时间,从而在满足给定精度的基础上,提高仿真的速度和效率,达到较好的实时仿真效果.最后通过实验验证了算法的有效性和可行性.
In order to improve the efficiency and accuracy of free-form surface NC machining simulation, a new method of free surface NC machining simulation based on Hierarchical Detail Model (LOD) control is proposed.This algorithm uses Z-map model to express the workpiece and designs and implements a triangle- Cutting algorithm.Using the triangle binary tree based LOD model to control the number of polygons rendered during real-time display of NC machining and reduce unnecessary computation time, the simulation speed and efficiency can be improved on the basis of satisfying the given accuracy Real-time simulation results.Finally, the validity and feasibility of the algorithm are verified by experiments.