基于FxLMS算法的双层隔振系统主动控制研究  

Research on Active Control of Double-Layer Vibration Isolation System Based on FxLMS Algorithm

作　　者：揭伟俊 翁雪涛[1] 李超博 

机构地区：[1]海军工程大学科研部,武汉430033

出　　处：《兵器装备工程学报》2016年第6期166-169,共4页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金资助(51179197)

摘　　要：将FxLMS算法应用到双层隔振系统,推导了该算法的实现过程,并进行振动主动控制,分析了步长和阶数对控制效果的影响;建立了双层隔振几何模型,并进行动力学分析,基于Simulink完成双层隔振系统的振动主动控制仿真过程;仿真结果表明:该算法收敛速度快,权值收敛效果好,稳态误差小;运用FxLMS算法,对多频线谱进行综合控制,控制效果良好;在保证系统稳定收敛的情况下,步长和阶数对控制效果的影响明显,合理调节步长和阶数,能明显改进主动控制效果。FxLMS algorithm was applied to the double-layer vibration isolation system. The implementation process of the algorithm was deduced and the active vibration control was acquired at the same time. Then the effect of step size and order to the control effect was analyzed. In order to complete the vibration active control simulation of double-layer vibration isolation system, the double-layer vibration isolation of geometric model was established based on simulink. Simulation results show that： the algorithm has a fast convergence speed,and its weight convergence effect is good and the steady-state error is small; and the control effect of multi frequency spectrum is good by using FxLMS algorithm; and under the case of the stability of the system convergence,the step size and order to the control effect is obvious,the effect can be improved if the step size and order is reasonable.

关 键 词：主动控制 FXLMS算法 双层隔振 SIMULINK仿真 

分 类 号：O328[理学—一般力学与力学基础]