速度前瞻控制中的伺服动力学约束条件  

Constraints on Velocity Look-ahead Control Based on Servo Dynamics

作　　者：杨征宇[1] 李宁[1] 闫华[1] 

机构地区：[1]南京工程学院,南京211167

出　　处：《中国机械工程》2010年第22期2671-2675,共5页China Mechanical Engineering

基　　金：江苏高校科研成果产业化推进自筹经费项目(JHZD09-15)

摘　　要：在空间小线段连续加工中,相邻线段拐角处的衔接速度受诸多因素的限制。从伺服电机的力矩特性及速度环带宽两个方面,分析了机床伺服系统的动力学性能与衔接速度的关系,建立了包含伺服性能参数和拐角几何参数的约束条件,讨论了约束条件在速度前瞻插补控制中的应用方法。In the process of continuous micro-line blocks machining,the feedrate at the corner formed by two adjacent lines is under various restrictions.Considering the torque characteristics andthe velocity loop bandwidth of a servo motor,the relation between the dynamics and the feed-rate ofa machine tool servosystem was analyzed,and the constraints related to the servosystem function parameters and the corner geometric parameters were obtained.The application of the constraints to the velocity look-ahead interpolation control was also discussed.

关 键 词：连续小线段加工 伺服系统 频带宽度 动态特性 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]