Shock response analysis of optical disk drives considering main base and pick-up actuator using linear drop test and tilt drop test

Young Bae Chang, Eun Jung Shin, No Cheol Park, Young Pil Park

Research output: Contribution to journalConference article

Abstract

The optical disk drive with more robustness against shock has been rarely studied. This research shows the shock response analysis of conventional optical disk drive. Main base of the optical disk drive is described with the motion of bouncing, pitching, and rolling. The entire model includes pick-up actuator. Finite element model of the entire system is made by ANSYS. And the lumped parameter model is made, which will replace the finite element model. Shock response of finite element model is compared with that of the lumped parameter model. Their shapes and magnitudes are the same. Therefore, the lumped parameter model can replace the finite element model. The lumped parameter model has advantages of cost and time over the finite element model. Linear drop test and tilt drop test are made in order to verify our shock model. Accelerometer is used for detecting input acceleration. Laser Doppler vibrometer is used for measuring the motion of the main base and pick-up actuator. Then experimental result is compared with the shock response of lumped parameter model. Their shapes are much the same. Therefore, the lumped parameter model of the optical disk drives can represent the real system.

Original languageEnglish
Article number596624
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5966
DOIs
Publication statusPublished - 2005 Dec 1
EventSeventh International Symposium on Optical Storage, ISOS 2005 - Zhanjiang, China
Duration: 2005 Apr 22005 Apr 6

Fingerprint

drop tests
Lumped Parameter Model
Linear actuators
optical disks
Tilt
Actuator
Shock
Finite Element Model
actuators
shock
Entire
Shock Model
Motion
Accelerometer
ANSYS
Doppler
Actuators
Laser
Verify
Robustness

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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abstract = "The optical disk drive with more robustness against shock has been rarely studied. This research shows the shock response analysis of conventional optical disk drive. Main base of the optical disk drive is described with the motion of bouncing, pitching, and rolling. The entire model includes pick-up actuator. Finite element model of the entire system is made by ANSYS. And the lumped parameter model is made, which will replace the finite element model. Shock response of finite element model is compared with that of the lumped parameter model. Their shapes and magnitudes are the same. Therefore, the lumped parameter model can replace the finite element model. The lumped parameter model has advantages of cost and time over the finite element model. Linear drop test and tilt drop test are made in order to verify our shock model. Accelerometer is used for detecting input acceleration. Laser Doppler vibrometer is used for measuring the motion of the main base and pick-up actuator. Then experimental result is compared with the shock response of lumped parameter model. Their shapes are much the same. Therefore, the lumped parameter model of the optical disk drives can represent the real system.",
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Shock response analysis of optical disk drives considering main base and pick-up actuator using linear drop test and tilt drop test. / Chang, Young Bae; Shin, Eun Jung; Park, No Cheol; Park, Young Pil.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5966, 596624, 01.12.2005.

Research output: Contribution to journalConference article

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