| 鲁力1， 李嘉全1，王永1，龚兴龙2 |
(1. 中国科学技术大学 自动化系，安徽 合肥230027; 2.中国科学技术大学 近代力学系，安徽 合肥230027) |
 摘要：研制了一种电磁式主动吸振器作为低频振动主动控制的执行机构，基于LMS自适应滤波算法设计了相应的控制律，该算法具有实现简单，计算量小等优点，利用DSP作为控制算法的核心器件，搭建了主动减振系统，最后通过两端固支梁减振实验表明了该系统和控制算法的有效性。 |
| 关键词：低频振动；振动主动控制；LMS；自适应滤波 |
| 中图分类号：TP2 文献标识码：A 文章编号：1000-8829(2008)04-0036-03 |
| Design and Experimental Research on Active Control System Of Low Frequency Vibration |
| LU Li1， LI Jia-quan1, WANG Yong1，GONG Xing-long2 |
| (1. Department of Automation,University of Science and Technology of China,Hefei 230027,China；2. Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027,China) |
| Abstract：An active electromagnetic vibration absorber is designed,which is used as the actuator in active low-frequency vibration control.The corresponding control law based on LMS adaptive filtering algorithm is also proposed,it is easy to realize and compute.An active vibration control system is constructed by using digital signal processor.Finally the experiment results are given in details,which validate the effectiveness of the system and the approach in active vibration control.
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| Key words：low frequency vibration；active vibration control；LMS(least mean square)；adaptive filter |
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