In April 1995 a Structures and Materials Action Group (SM AG-19) of GARTEUR (Group for Aeronautical Research and Technology in Europe) started an activity with the major objective to compare a number of current measurement and identification techniques applied to a common testbed. Twelve European groups participated, most of them involved in ground vibration testing aircraft for flutter clearance purposes. It seldom occurs in practice that a ground vibration test is repeated by a third party and can therefore be considered as a unique opportunity to validate the results of each individual test setup. This paper addresses the variability of the measured data and analysis results. Further this paper deals with the identification and comparison of the modal parameters of this testbed, where three closely spaced modes were incorporated as a 'hidden' vibration problem.


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    Title :

    Ground Vibration Test on the Garteur Testbed SM AG-19


    Contributors:
    A. J. Persoon (author) / E. Balmes (author)

    Publication date :

    1997


    Size :

    16 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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