Volume 21, Issue 3 (May 1993)

    The Design of a Control System for a Superimposed Frequency Fatigue Test Machine

    (Received 16 July 1991; accepted 10 November 1992)

    CODEN: JTEOAD

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    Abstract

    The conjoint action of high- and low-frequency fatigue on a test specimen has been obtained using a servohydraulic test machine. A control strategy was implemented such that only one servo-actuator was required to obtain both low- and high-frequency components. This paper describes the test rig and the decoupled automatic controller development for it.

    Test results show that the decoupled strategy systhesis produces satisfactory separation of the low- and high-frequency modes of the closed-loop response.


    Author Information:

    Stoten, DP
    Readers, University of Bristol, Bristol,

    Smith, DJ
    Readers, University of Bristol, Bristol,


    Stock #: JTE11764J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11764J

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    Author
    Title The Design of a Control System for a Superimposed Frequency Fatigue Test Machine
    Symposium , 0000-00-00
    Committee E08