Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Evaluation and Analysis of Dynamic Characteristics in Tilt Actuator for High Density Optical Storage Devices

고밀도 광저장 기기용 틸트 액추에이터 동특성 분석 및 평가

  • 김석중 (삼성전자(주) 중앙연구소) ;
  • 이용훈 (삼성전자(주) 중앙연구소) ;
  • 최한국 (삼성전자(주) 중앙연구소)
  • Published : 2000.08.01
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Abstract

We design a new actuator for high density optical device in order to control the radial tilting motion. The newly designed actuator makes it possible to control the tilting motion actively, while the coventional actuator compress tilting motion with passive spring. First of all, We present 3-dimensional modeling of actuator and accomplish the modal analysis and magnetic analysis of actuator. Due to these results, a new designed actuator has performance of high sensitivity and high second resonance frequency. Secondly, We present the 3-DOF dynamic modeling of the 4-wire spring type actuator. sensitivity analysis is performed to consider the assembling error, such as the difference of mass center and force center. From these results, the sensitivities of rotation due to the assembly error are revealed and design criteria of rotation is presented. And experimental results of a newly designed actuator are presented and compared with theoretical results. Finally, We propose a dynamic tilt compensation and high acceleration actuator for high density optical storage devices.

Keywords

References

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