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Experimental Comparison of Delayed Resonator and PD Controlled Vibration Absorbers Using Electromagnetic Actuators

机译:使用电磁执行器的延迟谐振器和PD控制减振器的实验比较

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摘要

The Delayed Resonator (DR) is a recent active vibration absorption technique which uses time delayed position feedback generating ideal resonance feature in a passive vibration absorber. This objective can also be achieved using proportional and derivative (PD) control as well as other more sophisticated routines such as LQR, sliding mode control. In this paper, DR technique is compared with PD, a widely adopted control strategy. Actuator dynamics is taken into account in analyzing the system. An analytical comparison is presented which is followed by an experimental validation of the findings using a single-degree-of-freedom primary structure and an absorber with electromagnetic actuator. Both analytical and experimental results show that the DR and PD implementations can be equally effective in suppressing undesired oscillations. The latter, however, requires a velocity observer, which is an additional complexity beyond the DR feedback structure.
机译:延迟谐振器(DR)是一种最新的主动吸振技术,它使用时间延迟位置反馈在被动吸振器中产生理想的谐振特征。使用比例和微分(PD)控制以及其他更复杂的例程(例如LQR,滑模控制)也可以实现此目标。在本文中,将DR技术与PD(一种广泛采用的控制策略)进行比较。在分析系统时要考虑执行器动力学。进行了分析比较,然后使用单自由度一级结构和带有电磁致动器的吸收器对发现进行了实验验证。分析和实验结果均表明,DR和PD实施可同样有效地抑制不希望的振荡。但是,后者需要一个速度观测器,这是DR反馈结构之外的另一个复杂性。

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