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Investigation into the effect of piston ring seals on an integrated squeeze film damper model

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Abstract

This research presents an advanced squeeze film damper model that integrates piston ring seal geometry, fluid inertia, and film cavitation to study their combined features. The configuration of the piston ring seal is inspected, and different sealing scenarios are discussed. The flow rate in the seal arrangement is determined on the basis of the pressure gradient according to thin film theory. Moreover, the governing equation for the flow in the film land that considers fluid inertia is solved using the linear complementarity problem method to address the cavitation phenomenon. Validation is performed by comparing the model prediction with long bearing and short bearing models under different seal dimensions. Results show that an oversized gap in the seal grooves and a large frictional coefficient may lock the piston ring seal in the seal groove and thus reduce seal efficiency.

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada

    Tieshu Fan & Kamran Behdinan

Authors
  1. Tieshu Fan
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  2. Kamran Behdinan
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Correspondence to Tieshu Fan.

Additional information

Recommended by Associate Editor Cheolung Cheong

Tieshu Fan obtained his M.Sc. in Mechanical Engineering from the University of Toronto in Toronto. He is currently a Ph.D. candidate in the University of Toronto. His research interests include mechanical modeling and design, vibration, and numerical simulations.

Kamran Behdinan obtained his Ph.D. in Mechanical Engineering from the University of Victoria in British Columbia in 1996. He is the Founding Director and Principal of the Advanced Research Laboratory for Multifunctional Lightweight Structures, funded by the Canadian Foundation for Innovation and the Ontario Research Fund. His current research interests include the design of lightweight airframe structures, multidisciplinary optimization of aerospace/automotive systems, and multiscale modeling for solids.

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Fan, T., Behdinan, K. Investigation into the effect of piston ring seals on an integrated squeeze film damper model. J Mech Sci Technol 33, 559–569 (2019). https://doi.org/10.1007/s12206-019-0109-4

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  • DOI: https://doi.org/10.1007/s12206-019-0109-4

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