摘要
安装有精密电子设备的舰载机柜具有很高的减振要求,尝试采用主动控制方法实现舰载机柜的多频振动控制。首先,基于叠堆压电作动器,建立了一套模型机柜主动减振试验系统;其次,进一步考虑舰载机柜的减振需求,采用多频并联结构自适应控制策略,进行了三频单入单出和四入四出的振动主动控制试验,并研究了控制系统对外扰激励和控制通道变化的自适应能力。试验结果表明:控制系统能够有效抑制被控点的低频线谱振动,单入单出情况下目标位置振动水平降低85%,四入四出状态下各被控点的振动控制效果均达到60%;叠堆压电作动器响应具有频带宽和响应速度快的特性,使系统对外扰激励及控制通道的变化具有较强的跟踪控制能力,具有一定的多频控制能力和较强的自适应性。
Shipboard cabinets equipped with sophisticated electronic equipment have very high vibration control requirements,and an active control method is used to realize multi-frequency vibration control of ship-borne cabinet in order to reduce the influence of multi-frequency vibration on ship effectively.Firstly,a set of active vibration control test system for a model cabinet was established based on stack piezoelectric actuators.Then,considering the practical necessity,a multi-frequency vibration control strategy using parallel-form adaptive filters was adopted to carry out the single-input single-output and four-input fouroutput experiments of three frequencies,and self-adaptive ability of the control system for external excitation and control channel changes were also studied.The experimental results show that the control system can effectively suppress the low frequency line spectrum vibration of the controlled points.At least 85%vibration reduction can be achieved in the single-input single-output case,and about 60%of each controlled point in four-input and four-output system.
作者
秦一凡
陆洋
马逊军
王风娇
QIN Yifan;LU Yang;MA Xunjun;WANG Fengjiao(College of Aerospace Engineering,Nanjing University of Aeronautics&Astronautics Nanjing,210016,China;Wuhan No.2 Ship Design&.Research Institute Wuhan,430205,China)
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2020年第6期1165-1171,1235,共8页
Journal of Vibration,Measurement & Diagnosis
关键词
舰载机柜
压电作动器
振动主动控制
并联结构自适应滤波
ship-borne electronic cabinet
piezoelectric actuator
active vibration control
parallel-form adaptive filters
