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Perturbation Solution for Finite Squeeze-Film Dampers Executing Linear Motion

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Abstract

This paper presents a complete perturbation solution in the eccentricity ratio for Reynolds' equation, for finite squeeze-film dampers executing linear motion. Orders of the perturbed solution are presented for the pressure and velocity fields. This represents a closed-form solution for finite squeeze-film dampers that can be used for rotordynamic simulation applications, to replace time-consuming finite-difference solutions. The perturbation solution provided in this paper can be extended for various damper sealing configurations, using appropriate boundary conditions, and provides insight into the damper characteristics.

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Authors and Affiliations

  1. Faculty of Engineering, Department of Mechanical Design and Production, Cairo University, Giza, Egypt, 12316

    A. El-Shafei

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  1. A. El-Shafei
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El-Shafei, A. Perturbation Solution for Finite Squeeze-Film Dampers Executing Linear Motion. Tribology Letters 14, 111–121 (2003). https://doi.org/10.1023/A:1021756304514

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  • DOI: https://doi.org/10.1023/A:1021756304514

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