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Dynamic characteristics of a direct-drive air-bearing slide system with squeeze film damping

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Abstract

Direct-drive air-bearing slides have the inherent advantages of high positioning accuracy and smoothness of motion, but due to low damping in the air bearings, they generally lack dynamic stiffness. The rigidity of the drive, both statically and dynamically, can also be low compared to mechanical equivalents. In this paper, the dynamic response of an air-bearing slide fitted with a novel design of oil-lubricated squeeze film damper and driven by a fast-response, high-resolution control system is reported. The results show that the damper produces a substantial improvement in dynamic stiffness and that sufficient drive stiffness can be obtained to enable the slide to be used in some precision-machining applications.

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References

  1. Welbourn D, Smith JD (1970) Machine tool dynamics—an introduction. Cambridge University Press, Cambridge. ISBN 0 521 07765 6

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  2. Breuer K (2001) Lubrication in MEMS. CRC handbook on MEMS. CRC, Boca Raton, FL

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Author information

Authors and Affiliations

  1. UPM Ltd., Mill Lane, Stanton Fitzwarren, SN6 7SA, UK

    Frank P. Wardle

  2. Loadpoint Ltd., Chelworth Ind Est, Cricklade, SN6 6HE, UK

    C. Bond

  3. Delta Tau Europa, Kirby Rd., Frinton on Sea, CO13 0HZ, UK

    C. Wilson

  4. Brunel University, Uxbridge, UB8 3PH, UK

    K. Cheng & D. Huo

Authors
  1. Frank P. Wardle
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  2. C. Bond
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  3. C. Wilson
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  4. K. Cheng
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  5. D. Huo
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Corresponding author

Correspondence to Frank P. Wardle.

Additional information

Patent pending for direct-drive air-bearing slide system with squeeze film damping.

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Wardle, F.P., Bond, C., Wilson, C. et al. Dynamic characteristics of a direct-drive air-bearing slide system with squeeze film damping. Int J Adv Manuf Technol 47, 911–918 (2010). https://doi.org/10.1007/s00170-009-2139-z

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  • DOI: https://doi.org/10.1007/s00170-009-2139-z

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