抄録
In a DVD-ROM drive, large-amplitude flow-induced vibration occurs due to the rotation of the disc at high speed. An experiment was conducted on this vibration. (1) When the disc rotational frequency was 185 Hz in the original drive structure, the disc vibration was (0, 3) mode. (2) The frequency at which this vibration occurs was increased by controlling the airflow on the disc surface. (3) We propose drive structures that can increase the frequency to over 200 Hz and eliminate disc vibration at the same time.
