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|Title:||Robust vibration control at critical resonant modes using indirect-driven self-sensing actuation in mechatronic systems|
|Keywords:||Critical resonant mode|
|Citation:||Hong, F.,Pang, C.K. (2012-11). Robust vibration control at critical resonant modes using indirect-driven self-sensing actuation in mechatronic systems. ISA Transactions 51 (6) : 834-840. ScholarBank@NUS Repository. https://doi.org/10.1016/j.isatra.2012.06.004|
|Abstract:||This paper presents an improved indirect-driven self-sensing actuation circuit for robust vibration control of piezoelectrically-actuated flexible structures in mechatronic systems. The circuit acts as a high-pass filter and provides better self-sensing strain signals with wider sensing bandwidth and higher signal-to-noise ratio. An adaptive non-model-based control is used to compensate for the structural vibrations using the strain signals from the circuit. The proposed scheme is implemented in a PZT-actuated suspension of a commercial dual-stage hard disk drive. Experimental results show improvements of 50% and 75% in the vibration suppression at 5.4kHz and21 kHz respectively, compared to the conventional PI control. © 2012 ISA.|
|Source Title:||ISA Transactions|
|Appears in Collections:||Staff Publications|
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