Digital Feedback Control of the Flow-Induced Vibrations on the Head Gimbals Assembly in Hard Disk Drives: Design and Implementation

• Main Authors: Min, Hequn, Huang, Xiaoyang, Zhang, Qide
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2016
• Subjects: Acoustic pressure; Active control
• Online Access: https://hdl.handle.net/10356/81674; http://hdl.handle.net/10220/40926
• Institution: Nanyang Technological University

In this paper, a digital feedback control closed-loop is presented for active suppression of flow-induced vibrations on a head gimbals assembly (HGA) in a working hard disk drive (HDD). In this closed loop, a laser Doppler vibrometer was used to detect the flow-induced HGA off-plate vibration as fee...