重载混联机床智能加减速控制算法对驱动力的影响  

Intelligent acceleration/deceleration control algorithm for drive force for a heavy duty hybrid machine tool

作　　者：郝齐[1,2] 关立文[1] 王立平[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084 [2]陆军航空兵学院直升机机械工程系,北京101123

出　　处：《清华大学学报（自然科学版）》2009年第11期1770-1773,1778,共5页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(50605041);国家"九七三"重点基础研究项目(2006CB705406)

摘　　要：在重载并联机床中,智能加减速控制算法对于驱动力的影响是显著的,但却很少被注意到。该文以一种重载混联机床中的二自由度并联机构为研究对象,利用虚功原理构建机构的动力学模型,通过实验仿真分析不同智能加减速控制算法对并联机构运动输入端驱动力的影响,并针对当前通用的S型加减速控制算法分析仿真,得到重载特性对机床控制的影响因素,最后对现有的S型加减速控制算法进行参数优化。结果表明,优化后的S型加减速控制算法在不影响表面加工质量的前提下,减小了机床在运行过程中的对电动机驱动力的要求。The drive force of a heavy duty hybrid machine tool depends strongly on the intelligent acceleration/deceleration control algorithm. A planar 2 degrees of freedom parallel kinematic mechanism for a heavy duty hybrid machine tool was analyzed using the Principle of Virtual Work. Several intelligent acceleration/deceleration control algorithms were analyzed to describe their effect on the drive force. The effect of heavy duty cycles on the machine tool control was then studied for the S-curve acceleration/deceleration control algorithm, which is widely applied for industrial control. The results show that the optimized algorithm can reduce the drive force without decreasing the quality of surface processing.

关 键 词：制造用设备 混联机床 智能加减速度控制算法 S型速度控制算法 

分 类 号：TH705[机械工程—仪器科学与技术]