China Mechanical Engineering ›› 2010, Vol. 21 ›› Issue (8): 978-982.

Previous Articles     Next Articles

Experimental Study on Adaptive Isolation of Periodical Vibration

Wang Junfang;Li Zhenwei;Zhang Zhiyi

  1. State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,200240
  • Online:2010-04-25 Published:2010-05-05
  • Supported by:
    National Natural Science Foundation of China(No. 10672099)



  1. 上海交通大学振动冲击噪声研究所,上海,200240
  • 基金资助:
    National Natural Science Foundation of China(No. 10672099)


For the isolation of multi-tonal vibration at multiple locations,an adaptive isolation method for vibration control was constructed by combing the tracking filtering technique with an anti-saturation LMS algorithm and was further verified with an experiment.The anti-saturation LMS algorithm can prevent any excessive adjustment of controller weights in the case of strong disturbance by introducing an anti-saturation scheme into the traditional LMS algorithm,which can optimize the updating process during the adaptation of controller weights according to the degree of saturation.The experimental results show that the adaptive method is able to suppress the periodical disturbance effectively and to improve the control performance by alleviating output saturation.

Key words: active vibration isolation, periodic vibration, adaptive control, saturation suppression, LMS algorithm





CLC Number: