通用的前馈振动控制Simulink仿真系统及其应用

利用Simulink平台，建立一个基于自适应滤波技术的前馈振动控制的通用仿真系统，并对直升机结构响应主动控制进行仿真研究，为了模拟机体的力学特性以及旋翼对机体的激振作用，本文建立了一个带伺服液压惯性式作动器的自由一自由梁模型，并使之处于双频扰力作用下，对于该模型，采用了FIR、SIIR等滤波模型进行识别和控制。通过对不同控制模式和与之相适应的滤波算法的仿真研究，揭示其算法收敛性和收敛速度等特性。

A General Simulink System of Feedforward Vibration Control and Its Application for Helicopter Vibration Control

The general simulation systems for feedforward vibration control based on adaptive filter technique are set up on the base of Simulink platform. According to these simulation systems the active control of structural responses for helicopter is simulated. In order to simulate the mechanical behaviors of the plant, a free-free beam model with servo-hydraulic inertial actuator is used, which is excited by dual-harmonic force. On this model some adaptive filters, such as FIR, SIIR, are independently used to identify and control the vibration system. Based on the simulation studies for different kinds of control modes and corresponding algorithms, the features, such as asymptotic of algorithm, the rate of convergence are discovered. Finally, some useful comments are given for further research.