Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

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

DOI QR Code

Interaction Analysis of Dual-stage System during Seek Motion and Control for Track Pull-in Enhancement

탐색 과정시 2단 액추에이터의 상호 작용 분석 및 트랙 끌어들임 성능 향상을 위한 제어

  • Published : 2005.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the dual stage interaction between the coarse actuator and the fine actuator of an optical disk drive is studied, and the new control method to enhance the track pull-in performance using fine actuator control is proposed. First, the dynamic analysis for the dual stage and the experiments to find the each actuator dynamics are performed. From the experiments, some physical parameters of the actuators were derived, then, some simulations are performed to find the interaction effect of the fine actuator during seek motion. Second, the center servo which suppresses the vibration of fine actuator during seek motion is designed and evaluated. And the fine actuator control to reduce the relative velocity between the target track and beam spot is proposed. From simulations, we show that fine actuator control which has same frequency and same phase of the disturbance is effective to reduce the relative velocity, and this result leads to track pull-in enhancement. Hence, the proposed control method is good approach to improve the track pull-in performance. Finally, the realization of the proposed method and some comments of it are briefly discussed.

Keywords

References

  1. Wagner, J. A., 1983, 'The Actuator in High Performance Disk Drives: Design Rules for Minimum Access Time', IEEE Transactions on Magnetics, Vol. 19, No. 5, pp. 1686-1688 https://doi.org/10.1109/TMAG.1983.1062665
  2. Suzuki, M., Tanaka, H. and Miura, Y., 1990, 'Pull-in Condition and Method of Tracking Servo in Optical Disk Drive', The Journal of the Institute of Television Engineers of Japan, Vol. 44, No. 10, pp. 1391-1397
  3. Ogawa, M. and Furukawa, T., 1992, 'Robust Servo System of Optical Disk Drive', Japan Journal of Applied Physics, Vol. 31, No. 2B, pp. 643-647 https://doi.org/10.1143/JJAP.31.643
  4. Semba, T. and Fennema, A., 1996, 'State-Space Intercept Method for Seek Control of Optical Disk Drives', Japan Journal of Applied Physics, Vol. 35, No. lB, pp. 466-470 https://doi.org/10.1143/JJAP.35.466
  5. Yang, J. -D., et al., 1996, 'Seek Time Trajectories of Time Optimal Control for a Dual Stage Optical Disk Drive Actuator', IEEE Transactions on Magnetics, Vol. 32, No. 5, pp. 3857-3859 https://doi.org/10.1109/20.539196
  6. Toyama, S., et al., 1997, 'Fast Seek Servo Method Using Two-degree-of-freedom Control for Magneto-Optical Disk Drives', Information Storage and Processing Systems, Vol. 3, pp. 75-82
  7. Yang, J. -D., et al., 1998, 'Coupling-Enhanced Control for Optical Disk Drives', Japan Journal of Applied Physics, Vol. 37, No. 4B, pp. 2003-2005
  8. Jin, K. B., Doh, T. Y., Ryoo, J. R. and Chung, M. J., 1998, 'Robust Direct Seek Control for High-speed Rotational Optical Disk Drives', IEEE Transaction on Consumer Electronics, Vol. 44, No. 4, pp. 1273-1283 https://doi.org/10.1109/30.735827
  9. Lee, H. -J., Han, C. -S. and Kim, S. H., 2000, 'Reduction of Seek Time of Tracking Actuator with Pulsed Excitation in Optical Disk', Japan Journal of Applied Physics, Vol. 39, No. 12A, pp. 6546-6549 https://doi.org/10.1143/JJAP.39.6546
  10. 전홍걸, 박영필, 2000, '광픽업 잔류 진동 저감을 위한 이송 속도 분포 해석', 한국소음진동공학회논문집, 제 10 권, 제 2 호, pp. 221-228
  11. 서삼준, 김동원, 박귀태, 2004, '고배속 CD-RW를 위한 중점 서보 및 편심 보상 제어', 제어.자동화.시스템공학논문지, 제 10 권, 제 12 호, pp. 1202-1209
  12. 최진영, 박태욱, 양현석, 박노철, 박영필, 2005, '위상 평면을 이용한 광 디스크 트랙 끌어들임의 동적 해석 및 영향 인자의 평가', 한국소음진동공학회논문집, 제 15 권, 제 1 호, pp. 29-38 https://doi.org/10.5050/KSNVN.2005.15.1.029
  13. Ryoo, J. R., et al., 2001, 'Fine Seek Control Extended Applicable Range for Optical Disk Drive', The Institute of Control, Automation and Systems Engineers, Vol. 3, No. 3, pp. 146-150
  14. Huang, J. -M. and Yen, J. -Y., 2003, 'A Novel Fine Track-seeking Scheme for Optical Storage Device', IEEE Transactions on Consumer Electronics, Vol. 49, No. 2, pp. 382-387 https://doi.org/10.1109/TCE.2003.1209529
  15. Zheng, J. and Guo, G., 2004, 'Feedforward Decoupling Control Design for Dual-actuator System in Hard Disk Drives', IEEE Transactions on Magnetics, Vol. 40, No. 4, pp. 2080-2082 https://doi.org/10.1109/TMAG.2004.832483
  16. 이광현, 최진영, 박태욱, 양현석, 박영필, 2004, '광 디스크 드라이브 이송계의 모델링 및 비선형 특성 분석', 한국소음진동공학회 추계학술대회논문집, pp. 75-79