Feedback-controlled friction or damping suppresses vibrations. Variable-friction secondary seal conceived to control vibration and stability of primary seal ring over wide range of conditions. By varying friction force or damping applied to primary seal ring, vibration controlled to provide stable operation. Advantages of "variablefriction secondary seal": face-seal stability controlled as function of primary-ring vibration amplitudes, and also friction remotely changed to achieve acceptable vibration amplitudes for large range of seal-operating conditions without compromising secondary-seal performance. Concept also useful in seal testing in which dynamic stability of face seals is under evaluation.


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    Titel :

    Variable-Friction Secondary Face Seals


    Beteiligte:
    Dirusso, E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1986-05-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Hydrodynamic lubrication of face seals

    Ludwig, L. P. / Allen, G. P. | NTRS | 1977


    Dynamic Analysis of Contact Face Seals

    Shapiro, Wilbur | SAE Technical Papers | 1986


    Phase changes in liquid face seals

    Hughes, W. F. | NTRS | 1980


    Design considerations for mechanical face seals

    Ludwig, L. P. / Greiner, H. F. | NTRS | 1980