反馈式多线谱主动隔振控制算法研究  

Multi-line spectrum feedback control algorithm for active vibration isolation

作　　者：张庆伟 俞翔[2] 杨理华 ZHANG Qingwei;YU Xiang;YANG Lihua(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China;College of Naval Architecture and Ocean Engineering,Naval University of Engineering,Wuhan 430033,China;Power Control Department,Naval Submarine Academy,Qingdao 266199,China;Key Laboratory of Noise and Vibration Research,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033 [2]海军工程大学舰船与海洋学院,湖北武汉430033 [3]海军潜艇学院动力操纵系,山东青岛266199 [4]中国科学院声学研究所噪声与振动重点实验室,北京100190

出　　处：《中国舰船研究》2021年第6期132-139,共8页Chinese Journal of Ship Research

基　　金：国家自然科学基金资助项目(51679245,51909267);山东省自然科学基金资助项目(ZR2019QEE031)。

摘　　要：[目的]针对振动控制中多频激励的传统自适应滤波算法控制效果不佳,以及工程中传感器不易安装和通道耦合等原因导致参考信号失配的问题,提出一种反馈式多线谱控制算法。[方法]首先,使误差信号通过级联自适应陷波器,并根据自适应算法更新陷波器参数来估计多个信号频率;然后,合成各参考信号,对相位进行补偿,通过Hilbert变换得到另一路参考信号;最后,进入并行控制器完成幅值更新,实现振动控制。[结果]仿真和试验结果表明,该算法能够精确估计频率信息,合成可靠参考信号,对30,37,60和110 Hz线谱均取得了20~40 dB能量衰减。[结论]该算法较好地解决了振动控制中参考信号失配和多线谱振动的问题,有效减弱和抑制了低频振动能量传递。[Objectives]Aiming at the poor control effect of the traditional adaptive filtering algorithm for multi-frequency excitation in vibration control,and the engineering problems of difficult sensor installation and channel coupling that cause reference signal mismatch,this paper proposes a feedback multi-line spectrum control algorithm.[Methods]First,the error signal is passed through the cascaded adaptive notch filter,and the notch filter parameters are updated according to the adaptive algorithm to estimate multiple signal frequencies.Next,each reference signal is synthesized and phase compensation performed,then another reference signal is obtained through Hilbert transform and the parallel controller is finally entered to complete the amplitude update and realize vibration control.[Results]Through simulation and experimental verification,the results show that the proposed algorithm can accurately estimate frequency information,synthesize reliable reference signals and achieve 20-40 dB energy attenuation for 30,37,60 and 110 Hz line spectrums.[Conclusions]This algorithm provides a better solution to the problems of reference signal mismatch and multi-line spectrum vibration in vibration control,and effectively reduces and suppresses low-frequency vibration energy transmission.

关 键 词：多频激励 参考信号失配 主动隔振 振动控制 自适应陷波器 频率估计 HILBERT变换 

分 类 号：U661.44[交通运输工程—船舶及航道工程] TB535.1[交通运输工程—船舶与海洋工程]