TY - GEN
T1 - Dynamic characteristics of optical disk over 15,000 rpm close to a rigid wall
AU - Lim, Seungho
AU - Oh, Wonseok
AU - Ko, Byunghan
AU - Cho, Ungrae
AU - Park, Kyoung Su
AU - Park, No Cheol
AU - Park, Young Pil
AU - Lee, Han Baek
PY - 2011
Y1 - 2011
N2 - For the high data transfer rate of optical disk, the rotational speed is increased over 15,000 rpm and the airflow between the rotating disk and rigid wall has become more and more important for the identification of the dynamic characteristics in case of the slim optical disk drive. Thus this airflow is simulated and considered for the modal analysis of the rotating disk via analytical method and finite element method. In addition, the natural frequency variation of the primary mode and the rigid body mode are observed. The calculated dynamic characteristics of the rotating disk based on the numerical model are available for the prediction of the Non-repeatable runout (NRRO) for the servo controller design.
AB - For the high data transfer rate of optical disk, the rotational speed is increased over 15,000 rpm and the airflow between the rotating disk and rigid wall has become more and more important for the identification of the dynamic characteristics in case of the slim optical disk drive. Thus this airflow is simulated and considered for the modal analysis of the rotating disk via analytical method and finite element method. In addition, the natural frequency variation of the primary mode and the rigid body mode are observed. The calculated dynamic characteristics of the rotating disk based on the numerical model are available for the prediction of the Non-repeatable runout (NRRO) for the servo controller design.
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U2 - 10.1364/isom_ods.2011.otuc5
DO - 10.1364/isom_ods.2011.otuc5
M3 - Conference contribution
AN - SCOPUS:85088760994
SN - 9781557529152
T3 - Optics InfoBase Conference Papers
BT - Joint International Symposium on Optical Memory and Optical Data Storage, ISOM_ODS 2011
PB - Optical Society of America (OSA)
T2 - Joint International Symposium on Optical Memory and Optical Data Storage, ISOM_ODS 2011
Y2 - 17 July 2011 through 20 July 2011
ER -