次级通道在线辨识的自适应结构响应主动控制研究  

Online Secondary Path Modeling Method for Adaptive Active Control of Structure Response

作　　者：杜昕[1] 唐炜[1] 李强[2] 张辉[2] 

机构地区：[1]西北工业大学自动化学院,陕西西安710021 [2]中航工业西安飞行自动控制研究所飞行器控制一体化技术国家重点实验室,陕西西安710065

出　　处：《航空科学技术》2015年第11期43-48,共6页Aeronautical Science & Technology

基　　金：国家自然科学基金(61573289);航空科学基金(20140753010);西北工业大学研究生种子基金(Z2015129)~~

摘　　要：直升机结构响应自适应主动控制算法因其适应能力强、重量轻、频带范围宽,效率高且控制效果好在直升机振动抑制中得到广泛应用。从作动器控制输入到目标减振点响应输出之间的次级通道传递函数的辨识精度严重影响系统稳定性,在线辨识能够适应直升机飞行高度、速度、环境、温度及压力等的改变给次级通道带来的影响。通过3种次级通道在线辨识算法控制效果仿真对比,从抗干扰性和收敛速度的角度,分析了现有自适应滤波算法,为直升机减振主动控制算法的设计提供参考。Adaptive active control of structure response has been widely used in helicopter vibration control, because of good adaption, light weight, broad frequency band, efifcient and better control result. The identiifcation accuracy of secondary path, which denotes the transfer function from input of actuator to output of objective vibration reduction, has a signiifcant impact on system stability. Online secondary path modeling has the superiority which can track the change of lfight status including height, speed, environment, temperature and pressure. Comparison of the simulation results ilustrateed the advantages and disadvantages of three online secondary path modeling methods. Analyzed the adaptive iflter algorithm from the anti-interference and convergence point of view, and provided reference for helicopter vibration active control algorithm.

关 键 词：直升机 结构响应主动控制 在线辨识 减振 

分 类 号：TH132.41[机械工程—机械制造及自动化] TP273.2[自动化与计算机技术—检测技术与自动化装置]