直升机有源隔振系统的鲁棒控制

 消除来源于旋翼和大气紊流的叶片谐振干扰是未来直升机设计中考虑的一个重要问题。本文应用鲁棒控制理论设计的有源隔振器,有效地抑制了叶片一次和二次谐振对机身的影响;同时它还消除了直升机在升、降加速度作用下所产生的旋翼相对机身的位移。

ROBUST CONTROL OF AN ACTIVE VIBRATION ISOLATION SYSTEM FOR HELICOPTERS

The rejection of so-called blade harmonic disturbances generated by the mainrotor of helicopters and atmospheric turbulence is an important problem which should be considered in the design of future helicopters. In this paper, we applied robust control theory to the design of an active vibration isolation system which effectively restricts the influence of blade harmonics on the fuselage at the first and second harmonic frequencies, as well as el, iminates the static relative displacement between the mainrotor and fuselage under ascent or descent acceleration.