摘要
在非圆截面活塞车削的过程中,系统的抗变化负载扰动问题是一个最关键的问题,在实际应用中如果是空载的情况下,系统较容易实现对外部周期信号的跟踪,但是在有载的情况下,如果系统的刚度这不到要求, 切削就会变形,从而影响系统的加工精度。本文针对变化负载扰动情况下如何提高系统刚度,减小负载抚动对刀具定位的影响进行了分析,并提出了重复迭代学习控制的新型控制算法,为提高活塞加工精度提供了新思路。
Anti -disturbance performance for varying load is a key problem in the process of turning of non - circular piston. In practical application, the system can easily trace external periodical signal off- load. But if anti - disturbance can not reach requirement, the capability of tracing reference signal will reduce severely to influence machining precision on - load. How to improve stiffhess degree of the system to reduce the influence of load disturbance to tool position in the course of varying load disturbance is analysised in the paper. A new control strategy integrates repetitive control with iterative learning control algorithm is proposed. A new train of thought to imorove middle - convex and varying ellipse piston machining precision is proposed in the paper.
出处
《辽宁省交通高等专科学校学报》
2006年第1期48-50,共3页
Journal of Liaoning Provincial College of Communications
关键词
直线电机
重复控制
刚度
负载扰动
Linear motor repetitive control stiffness degree load disturbance
