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Behavior of fluid lubricant and air–oil interface of operating FDBs due to operating condition and seal design

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Abstract

This paper investigated the behavior of fluid lubricant and air–oil interface of operating fluid dynamic bearings (FDBs) by using two-phase flow analysis of air and oil to describe the oil sealing mechanism of operating FDBs. The two-phase flow of fluid lubricant and air was analyzed by using the Navier–Stokes equation and the volume of fluid method of a multi-phase flow. The proposed numerical method was verified by the numerical result of the Reynolds equation and the experimental result of the prior researcher. This research also discussed the effect on the oil leakage of the operating FDBs due to the existence of inward pumping groove, tapering angle and initial position of fluid.

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References

  • Bootsma J, Tielemans LPM (1977) Conditions of leakage-free operation of herringbone grooved journal bearings. J Lubr Technol 99:215–223

    Article  Google Scholar 

  • Jang GH, Lee SH, Kim HW (2006) Finite element analysis of the coupled journal and thrust bearing in a computer hard disk drive. J Tribol 128:335–340

    Article  Google Scholar 

  • Jung KM, Jang GH (2011) Axial shock-induced motion of the air–oil interface of fluid dynamic bearings of a non-operating hard disk drive. IEEE Trans Magn 47:1911–1917

    Article  Google Scholar 

  • Kita H, Matsuoka K, Obata S, Noda H (2002) Prediction method of oil leakage of FDBs using numerical analysis. Microsyst Technol 8:250–254

    Article  Google Scholar 

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Acknowledgments

This work was supported by Samsung Electro-Mechanics Co. Ltd. and by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0021919).

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Authors and Affiliations

  1. Department of Mechanical Engineering, Hanyang University, 17 Haengdang-Dong, Seongdong-Gu, Seoul, 133-791, Korea

    Kyungmoon Jung & Gunhee Jang

  2. Samsung Electro-Mechanics Co. Ltd., 314, Maetan 3-Dong, Yeongtong-Gu, Gyeonggi-Do, Suwon-Si, 443-743, Korea

    Juho Kim

Authors
  1. Kyungmoon Jung
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  2. Gunhee Jang
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  3. Juho Kim
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Corresponding author

Correspondence to Gunhee Jang.

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Jung, K., Jang, G. & Kim, J. Behavior of fluid lubricant and air–oil interface of operating FDBs due to operating condition and seal design. Microsyst Technol 18, 1373–1381 (2012). https://doi.org/10.1007/s00542-012-1544-7

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  • DOI: https://doi.org/10.1007/s00542-012-1544-7

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