Nonlinear Study of Industrial Arc Spring Dampers

Said Lahriri (Invited author), Ilmar Santos (Invited author), Henning Hartmann (Invited author)

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch


    The objective of this paper is to present a numerical approach for analyzing parameter excited vibrations on a gas compressor, induced by the nonlinear characteristic of the arc spring feature of certain designs of squeeze film dampers, SFDs. The behavior of the journal is studied in preparation for varying the damping characteristics of the SFD as well as the dynamic forces acting on the SFD. Phase plane orbits together with Poincar´e maps are given for different arc spring damping and static and dynamic load cases. Besides, bifurcation diagrams as a function of the arc spring damping and forces acting on the SFD are presented. It is worth mentioning, that the maps and diagrams can be used as design guidance. Finally, a comparison between the numerical results and experimental result is facilitated in form of waterfall diagrams. For this, a full scale model of the arc-spring damper was designed and build.
    Original languageEnglish
    Title of host publicationProceedings of the 14. International Symposium on Dynamic Problems of Mechanics
    Publication date2011
    Publication statusPublished - 2011
    Event14th International Symposium on Dynamic Problems of Mechanics - São Sebastião, São Paulo, Brazil
    Duration: 13 Mar 201118 Mar 2011
    Conference number: 14


    Conference14th International Symposium on Dynamic Problems of Mechanics
    CitySão Sebastião, São Paulo


    • chaos
    • Bifurcation diagrams
    • Poincar´e maps
    • nonlinear dynamics
    • Phase plane orbits


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