广义时滞系统的数控加工精度可靠性研究  

The Reliability Study of NC Machining Accuracy in Descriptor Systems with Time Delay

作　　者：张国艳[1] 张春妍[1] 孙杰[1] 黄恒林[2] 

机构地区：[1]哈尔滨华夏计算机职业技术学院机电工程系,哈尔滨150025 [2]哈尔滨工业大学电气工程及其自动化学院,哈尔滨150001

出　　处：《价值工程》2013年第3期19-20,共2页Value Engineering

基　　金：黑龙江省教育厅2012年科研项目(12520016)

摘　　要：本文针对数控系统加工精度受外部客观因素和系统内部因素影响较大特点,通过容错技术中信息和控制系统容错设计方法,即以控制器为核心,利用传感器和执行机构进行容错设计,引入广义时滞系统的容错控制,设计一个可靠的记忆状态反馈控制器,用数学思想表明该设计方法在数控加工系统发生故障时,利用使系统稳定工作或保持规定的动态性能,从而保证数控系统的加工精,提高其可靠性。The NC machining accuracy is deeply affected by external factors and internal factors, this article uses information and control system fault tolerance design method in fault-tolerant technology, which is designing with sensors and actuators as the core of controller, introducing the fault tolerant control of generalized system with time delay, designing a reliable memory state feedback controller. Then, using mathematical thinking indicates that when the NC machining system failure, the design method can ensure the machining accuracy of NC system, and improve its reliability, by using the dynamic performance which can make the system work stably and keep the prescribed.

关 键 词：数控加工精度 广义时滞系统 可靠控制 容错技术 

分 类 号：TG519.1[金属学及工艺—金属切削加工及机床]