IMPROVED ADAPTIVE CONTROL ALGORITHM FOR ACTIVE-PASSIVE VIBRATION ISOLATION OF DIESEL GENERATOR
An improved FxLMS control algorithm is proposed:to extract the target line-spectrum with narrow-bandpass filters and control the line-spectrum in this frequency band with a control subsystem,where several control subsystems can operate independently in parallel to control several line-spectrums;for each frequency band,the secondary path model is identified at its center frequency,then a 2-order FIR filter is suitable for the model,so the computation amount will be greatly reduced.Theoretical analysis and experiments indicate that the algorithm features the advantages of little calculation,high rate of convergence,good stability,etc.;a stable and good control effect is achievable even if there is some deviation(in Hz)of signal frequency from the narrowband center.Experiments on the active-passive vibration isolation mounting of diesel generator show that,line-spectrums of several frequency combinations in different working conditions are under effective control.
Li Yan He Lin Lv Zhiqiang Shuai Changgeng
Institute of Noise and Vibration,Naval University of Engineering,Wuhan 430033,China;National Key Laboratory on Ship Vibration and Noise,Wuhan 430033,China
国际会议
The 21th International Congress on Sound and Vibration(第21届国际声与振动大会)
北京
英文
1-9
2014-07-13（万方平台首次上网日期，不代表论文的发表时间）