在Matlab/Simulink环境下的动态铣削力仿真

A Dynamic Simulation of Milling Force in Matlab/Simulink Environment

以圆周铣削颤振理论为基础 ,考虑瞬态切屑厚度及刀具有效前角对动态铣削力的影响 ,建立一种更准确且更实用的圆周铣削过程的动力学模型 .运用数字仿真技术 ,在 Matlab/ Simulink环境下建立铣削力系统的计算机仿真模型 ;利用已有的试验数据 ,对动态铣削力模型进行了仿真研究 .仿真结果表明 ,该模型的有效性和合理性 。

Based on chattering theory of peripheral milling, a dynamic model was established for simulating process of peripheral milling. To make it more accurate and practical, the influence of instantaneous chip thickness and effective rake angle on dynamic milling force was taken into considrration. A computer simulation model of milling force was established in Matlab/Simulink environment by applying digital simulation technique and simulation study was made on the dynamic model of milling force by applying experimental data now available. As indicated by results of simulation, the relation between milling force and various cutting parameters as well as the vibration state of cutting tool can be correctly reflected by effectiveness and reasonableness of this model.