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Development of Pressure Sensors Integration Method to Measure Oil Film Pressure for Hydrodynamic Linear Guides

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Production at the Leading Edge of Technology (WGP 2022)

Part of the book series: Lecture Notes in Production Engineering ((LNPE))

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Abstract

The accuracy of the machined workpiece depends on the true conditions of the hydrodynamic linear guides. Linear guides based on hydrodynamic lubrication are still in use due to their high damping coefficient and high load carrying capacity. Measuring the true conditions of the hydrodynamic linear guide is important to achieve high accuracy. Until today, pressure measurement has not been established for linear guides. Oil film pressure is one of the important factors explaining the operating conditions of the hydrodynamic linear guides. The main goal of this study is to develop a method in which pressure sensors were installed in the lubrication gap to measure the oil film pressure under realistic condition of a hydrodynamic linear guide. A hydrodynamic linear guide testing rig with varying load capability was used as main test device. Multiple miniature pressure sensors were installed in a stationary rail in different manners to get the realistic oil film pressure distribution along the length of the slide. Additionally, the sensors were also calibrated hydrostatically and hydrodynamically with variable frequency and amplitude. Due to the problem of the enormous influence of air inside the lubrication gap of the testing rig, the measured pressure by the sensors showed that the numerical results have to be adapted to the experimental oil film pressure, which is lower. A new sensor’s integration method has shown great improvements in estimating the oil film pressure of hydrodynamic guides experimentally.

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Acknowledgements

This work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project-ID 285064832. Authors thank for the financial support.

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Authors and Affiliations

  1. Institute for Machine Tools and Production Processes (IWP), Chemnitz University of Technology, Reichenhainer Straße 70, 09126, Chemnitz, Germany

    B. Ibrar, V. Wittstock, J. Regel & M. Dix

  2. Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Straße 88, 09126, Chemnitz, Germany

    M. Dix

Authors
  1. B. Ibrar
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  2. V. Wittstock
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  3. J. Regel
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  4. M. Dix
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Corresponding author

Correspondence to B. Ibrar .

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Editors and Affiliations

  1. Institut für Umformtechnik, Universität Stuttgart, Stuttgart, Germany

    Mathias Liewald

  2. ISW, Universität Stuttgart, Stuttgart, Germany

    Alexander Verl

  3. IFF, Universität Stuttgart, Stuttgart, Germany

    Thomas Bauernhansl

  4. Institut für Werkzeugmaschinen, Universität Stuttgart, Stuttgart, Germany

    Hans-Christian Möhring

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Ibrar, B., Wittstock, V., Regel, J., Dix, M. (2023). Development of Pressure Sensors Integration Method to Measure Oil Film Pressure for Hydrodynamic Linear Guides. In: Liewald, M., Verl, A., Bauernhansl, T., Möhring, HC. (eds) Production at the Leading Edge of Technology. WGP 2022. Lecture Notes in Production Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-18318-8_29

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  • DOI: https://doi.org/10.1007/978-3-031-18318-8_29

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-18317-1

  • Online ISBN: 978-3-031-18318-8

  • eBook Packages: EngineeringEngineering (R0)

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