基于多线程的改进铣削仿真算法  

An Improved Simulation Algorithm Based on Multi-thread for NC Milling Process

作　　者：崔东亮[1] 张耀鹏 

机构地区：[1]东北大学流程工业综合自动化教育部重点实验室,辽宁沈阳110004 [2]平顶山工业学校,河南平顶山467001

出　　处：《东北大学学报（自然科学版）》2007年第9期1225-1228,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50205007);教育部新世纪优秀人才计划项目(NCET20420281)

摘　　要：为了对验证NC程序和改善加工状况的机器加工仿真系统进行优化,在通用的切削仿真架构基础上,提出了改进的Z-map和Z缓冲区处理算法.通过有效际线概念的引入,压缩仿真过程中各比较操作的重合运算,通过高程内插法实现Z-map到Z缓冲区重构,通过参考平面节省Z缓冲区切割运算量,并提出多线程实现框架以提高算法的实用性.试验数据表明改进的算法执行效率较高,多线程架构对于仿真的实现更加合理,提高用户响应速度.An improved algorithm for Z-map and Z-buffer was proposed according to the common simulation frame of machining process to optimize the simulation system so as to verify NC programs and improving machining conditions. Introducing the idea about the useful sideline into the simulation process, the repeated operation of different comparisons are compacted, with the Z-buffer restructured from Z-map by way of height interpolation and the computational complexity of cutting process reduced through reference planes. Moreover, a multi-thread approach is proposed as an implementation frame to improve the practicality of the algorithm. Testing data show that the algorithm is of high efficiency in practice and the multi-thread frame can serve the function of making the simulation more reasonable and the response speed quicker.

关 键 词：铣削仿真 Z-MAP Z缓冲区 内插 多线程 际线 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]