A number of nuclear power plant steam generators have been troubled with corrosion buildup between the tubes and supporting plates. A vibration type probe which traverses the interior of the tubes during plant shutdown has been developed to inspect the tube and support crevices. The probe incorporates a miniature electric vibrator and accelerometers to induce and measure tube motion at the support plate junctions. Laboratory investigation indicates that clearance gaps ranging from 1 to 30 mils can be accurately and rapidly measured even in the presence of tube misalignment and varied tube support conditions. The probe system is also suited to in-situ measurements of heat exchanger tube vibration characteristics.


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    Title :

    Measurement of Tube/Tube Support Clearance via Induced Vibration Analysis


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Congress and Exposition ; 1980



    Publication date :

    1980-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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