Supervisory adaptive control for the structural vibration of a coordinate-measuring machine
Supervisory adaptive control for the structural vibration of a coordinate-measuring machine
复制标题
三坐标测量机结构振动的监控自适应控制
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
J. Ni
中科院分区：
文献类型：
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作者：
Jianjun Shi;J. Ni
针对三坐标测量机的结构振动控制问题，提出了一种监督自适应控制方法。三坐标测量机是一个模型阶次和参数时变的动态系统。采用在线动态数据系统建模算法，同时辨识系统模型阶次和参数。基于所识别的模型，应用预测控制算法来生成控制命令。提出了一种具有多个监控指标和决策规则的监控策略来监控建模和控制过程。开发的监督自适应控制方法已在数字信号处理器板结构振动控制。实验结果表明，在峰到峰的振动减少75%，并在建立时间减少80%。
A supervisory adaptive control approach has been developed for a structural vibration control of a coordinate measuring machine, which is a dynamic system with time varying system model order and parameters. An on-line dynamic data system modelling algorithm is used to identify the system model order and parameters simultaneously. Based on the identified model, a predictive control algorithm is applied to generate control commands. A supervisory strategy with several monitoring indices and decision-making rules is proposed to supervise the modelling and control processes. The developed supervisory adaptive control approach has been implemented in a digital signal processor board for structural vibration control. Experimental results indicate a 75% reduction in the peak-to-peak vibration and an 80% reduction in the settling time.