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Effect of shock pulse width on the shock response of small form factor disk drives

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Abstract

This paper discusses the effect of varying the shock pulse width on the shock response of small form factor hard disk drives. We develop a new shock simulator for hard disk drives which simulates the structural as well as the air bearing dynamics of the disk drive simultaneously. We observe that the response of the disk to the shock pulse is of critical importance and depends strongly on the pulse width of the shock pulse. We also find that if a suspension bending frequency is close to the first umbrella frequency of the disk, there can be failure of the head–disk interface due to resonance.

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References

  • Bhargava P, Bogy DB (2005) Numerical simulation of load/unload in small form factor hard disk drives. Technical Report 2005-011, CML, University of California, Berkeley

  • Bhargava P, Bogy DB (2007) Numerical simulation of operational-shock in small form factor hard disk drives. ASME J Tribol 129:153–160

    Article  Google Scholar 

  • Edwards JR (1999) Finite element analysis of the shock response and head slap behavior of a hard disk drive. IEEE Trans Magn 35:863–867

    Article  Google Scholar 

  • Guyan RJ (1965) Reduction of stiffness and mass matrices. AIAA J 3:310

    Google Scholar 

  • Harrison JC, Mundt MD (2000) Flying height response to mechanical shock during operation of a magnetic hard drive. ASME J Tribol 122:260–263

    Article  Google Scholar 

  • Jayson EM, Murphy J, Smith PW, Talke FE (2003) Shock modeling of the head–media interface in an operational hard disk drive. IEEE Trans Magn 39:2429–2432

    Article  Google Scholar 

  • Jiang ZW, Takashima K, Chonan S (1995) Shock proff design of head disk assembly subjected to impulsive excitation. JSME Int J 38:411–419

    Google Scholar 

  • Kouhei T, Yamada T, Keroba Y, Aruga K (1995) A study of head–disk interface shock resistance. IEEE Trans Magn 31:3006–3008

    Article  Google Scholar 

  • Kumar S, Khanna V, Sri-Jayantha M (1994) A study of the head disk interface shock failure. In: The 6th MMM-Intermag conference

  • Lu S (1997) Numerical simulation of slider air bearings. PhD thesis, University of California

  • Zeng Q, Bogy DB (2000) Numerical simulation of shock response of disk-suspension-slider air bearing systems in hard disk drives. Microsyst Tech 8:289–296

    Article  Google Scholar 

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Acknowledgment

This study was supported by Seagate Corporation and the Computer Mechanics Laboratory (CML) at the University of California, Berkeley.

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Authors and Affiliations

  1. Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA, 94720, USA

    Puneet Bhargava & David B. Bogy

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  1. Puneet Bhargava
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  2. David B. Bogy
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Correspondence to Puneet Bhargava.

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Bhargava, P., Bogy, D.B. Effect of shock pulse width on the shock response of small form factor disk drives. Microsyst Technol 13, 1107–1115 (2007). https://doi.org/10.1007/s00542-006-0328-3

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  • DOI: https://doi.org/10.1007/s00542-006-0328-3

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