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Effect of HDD Rotational Speed Variation on Filtration of Particles by Recirculation Filter

하드 디스크 드라이브 회전수 변화가 내부 필터 입자 포집 성능에 미치는 영향

  • Published : 2002.08.01

Abstract

Contamination particles in a hard disk drive can cause serious problems including slider crash and thermal asperities. A recirculation filter is typically installed in the hard disk drive to remove the particles. Measurements and theoretical predictions of particle concentration decay with the filter are carried out for a commercially available HDD. Especially, the effect of disk rotational speed on the particle capture efficiency is investigated. Results show that filter efficiency is higher for higher disk rotational speed.

Keywords

References

  1. Zhang, S., 1997, ' Numerical Investigations of Particle Contamination and Thermal Effects in a Slider Disk Interface,' Ph. D. Thesis, Dept. Mech. Eng., UC Berkeley
  2. Stupp, S. E., Baldwinson, M. A., McEwen, P., Crawford, T. M., and Rogers, C. T., 1999, Thermal Asperity Trends,' IEEE Trans. Magnetics, Vol. 35, No. 2, pp.752-757 https://doi.org/10.1109/20.750640
  3. Park, H. S., Yoo, Y. C, Bae, G. N., and Hwang, J., 1999, ' Investigation of Particle Generation in a Hard Disk Drive During the Start/Stop Period,' J. KSME(B), Vol. 23, No.6, pp.744-752
  4. Tsai, C. J., 1990, ' A Study of Particulate Phenomena in Computer Disk Drives,' Ph. D. Thesis, Dept. Mech. Eng., Univ. of Minnesota
  5. Anath, G. P., 1988,' Experimental and Numerical Investigations of Particulate Contamination in Disk Drives,' Ph. D. Thesis, Dept. Mech. Eng., Univ. of Minnesota
  6. Bergin, M. and Koka, R., 1993, Measurement of Particulate Contamination Levels in Disk With Aerosol Counters,' Adv. Info. Storage Syst., Vol. 5, pp.387-395
  7. Japuntich, D. A., 1982, ' Disk-Drive Recirculation Filtration System Evaluation,' Microcontamination, Jan., pp.52-56
  8. Yoo, Y. C, 2000, ' Numerical Calculations of Flow Field and Increase of Particle Capture Efficiency by a Recirculation Filter in a Hard Disk Drive,' MS. Thesis, Dept. Mech. Eng., Yonsei Univ
  9. Ahn, K. H. and Bae, G. N., 1994, Performance Evaluation of a Newly Built Atomizer,' KSME Proceeding of Spring Annual Conference, Vol II, pp.381-384
  10. Park, H. S., Lee, D. Y., Hwang, J., Kim, K., and Jang, D. S., 2001,' An Investigation of Particle Detachment Ratios From Rotating Data Storage Disks,' KSME(D) Proceeding of Spring Annual Conference, pp.585-588