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http://dx.doi.org/10.5050/KSNVE.2012.22.11.1128

A Mathematical Approach for Vibration Analysis of a Pickup Actuator  

Lee, Kyung Taek (Korea National University of Education)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.22, no.11, 2012 , pp. 1128-1136 More about this Journal
Abstract
This paper analyzes the vibration characteristics of an optical pickup actuator, which has six wire-suspensions and is used in optical disc drives(ODDs). The vibration characteristics of the actuator is mathematically described by analyzing its beam configuration and motion condition confined to lateral and longitudinal directions of the beams. The accuracy of the vibration characteristics is proved by comparing mode frequencies with a finite element analysis. Finally, it is shown that mode frequencies and shapes can be modified by changing design parameters in mathematical expressions.
Keywords
Characteristic Equation; Pure Axial Vibration; Coupled Axial-bending Vibration; Actuator; Focusing Mode; Pitching Mode;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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