航空发动机转子系统主动抑振控制方法研究

Active Vibration Control of Aero-engine Rotor System

现代先进航空燃气涡轮发动机均不断追求高性能,高可靠性设计,在初始结构设计时,常由于布局构型不合理迫使对结构改型,不仅大大延长了设计周期,而且往往造成费用的超额支出。采用多种现代控制理论结合的综合控制方法,通过对主动控制器的设计,从而实现对航空发动机转子系统的临界转速裕度、不平衡量敏感性以及快速衰减瞬态振动等的综合力学性能的改善。仿真表明,通过主动抑振控制器设计,可以大幅度提高转子系统的抑振能力,有效提升转子系统的可靠性和安全性,可以为航空发动机转子结构减振的主动控制策略提供参考。

Modern advanced aero gas turbine engines are constantly pursuing high performance and high reliability design. In the initial structural design, the unreasonable layout often forces the structural modification, which not only greatly prolongs the design cycle, but also often results in excessive expenditure of costs. In this paper, a comprehensive control method combining various modern control theories is used to improve the critical speed margin, unbalance sensitivity and fast attenuation transient vibration of the aero-engine rotor system through the design of an active controller. The simulation results show that by active controller design, the vibration control ability of the rotor system can be greatly improved, and the reliability and safety of the rotor system effectively improved, which can provide references for the active control strategy of vibration attenuation of the aero engine rotor structure.