特定稳定调节器快速抑制高速转子瞬态振动

Linear Quadratic Regulator with Specific Stability for Transient Vibration Control of High-Speed Flexible ROtor

特定稳定调节器快速抑制高速转子瞬态振动贺尔铭，顾家柳，陈新海国内外一些研究者曾对线性二次型调节器（ＬＱＲ）控制模型转子的稳态振动进行过理论和实验研究。但迄今为止，涉及转子瞬态振动控制的文献极少。Ｐａｔａｚｚｏｌｏ等人〔１、Ｚｊ借助于压电执行器调查了Ｌ...

Palazzolo in a rare paper on this subject in 1989, employed LQR (linear quadratic regulator) to attenuate the transient response of the easily disturbed rotor supported on the squirrel cage bearing (similar to SFDB), in which control forces are applied more readily than in CSFDB. It can reduce the peak disturbance to 1/3 within 2 seconds. But such a reduction is not good enough for a high-speed rotor. We now present an LQR-SS (SS-specific stability) method that can practically completely suppress the peak disturbance within 0.4 seconds. The performance index for minimizing the vibration of system is proposed.