转子动力系统时滞H^∞控制

H ∞ Control with Time Delay for Rotor Dynamic System

针对转子系统振动控制中的时滞现象，研究了时滞Ｈ∞控制。首先对线性转子系统设计时滞Ｈ∞控制器，并对可控挤压油膜阻尼器（ＣＳＦＤＢ）转子系统，用ＣＳＦＤＢ产生的非线性油膜力逼近线性转子系统的控制力，实现ＣＳＦＤＢ转子系统振动主动控制。数值仿真表明：时滞Ｈ∞控制器能较好地控制转子系统的不平衡响应，且较之无时滞Ｈ∞控制器使转子不平衡响应衰减更快。

This paper presents the H ∞ control with time delay for the rotor systems.First,the H ∞ controller with time delay for linear rotor system is designed.For CSFDB rotor system,the oil film force produced by CSFDB which approaches the linear control force is applied to control rotor vibration.A simulation shows that the H ∞ controller with time deley can attenuate the imbalance response of rotor system effectively and has more advantageous than ordinary H ∞ controller.