Method of triangular mesh modeling in numerical control machining simulation  

作　　者：马志艳 陈幼平 李建军 赵遥劲 

机构地区：[1]School of Mechanical Science and Engineering,Huazhong University of Science and Technology

出　　处：《Journal of Central South University》2010年第5期1021-1027,共7页中南大学学报（英文版）

基　　金：Project(60772089) supported by the National Natural Science Foundation of China;Project(20080440939) supported by the China Postdoctoral Science Foundation

摘　　要：In the process of numerical control machining simulation,the workpiece surface is usually described with the uniform triangular mesh model.To alleviate the contradiction between the simulation speed and accuracy in this model,two improved methods,i.e.,the local refinement triangular mesh modeling method and the adaptive triangular mesh modeling method were presented.The simulation results show that when the final shape of the workpiece is known and its mathematic representation is simple,the local refinement triangular mesh modeling method is preferred;when the final shape of the workpiece is unknown and its mathematic description is complicated,the adaptive triangular mesh modeling method is more suitable.The experimental results show that both methods are more targeted and practical and can meet the requirements of real-time and precision in simulation.In the process of numerical control machining simulation, the workpiece surface is usually described with the uniform triangular mesh model. To alleviate the contradiction between the simulation speed and accuracy in this model, two improved methods, i.e., the local refinement triangular mesh modeling method and the adaptive triangular mesh modeling method were presented. The simulation results show that when the final shape of the workpiece is known and its mathematic representation is simple, the local refinement triangular mesh modeling method is preferred; when the final shape of the workpiece is unknown and its mathematic description is complicated, the adaptive triangular mesh modeling method is more suitable. The experimental results show that both methods are more targeted and practical and can meet the requirements of real-time and precision in simulation.

关 键 词：numerical control machining triangular mesh model SIMULATION 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术] TG659[自动化与计算机技术—计算机科学与技术]