This report documents the results of an experimental program to study the phenomenon of chordwise bending flutter. An extensive series of vibration bench tests, using both prototype blades and the actual J-blade hardware, resulted in the choice of the first bending mode of a fully double-cantilevered configuration as the chordwise bending mode to be tested. Alterations in both method of blade attachment and in the blade geometry itself were introduced to improve the desired mode shape and frequency. The vibration bench tests were carried out in conjunction with NASTRAN predictions and supersonic cascade aerodynamic computations. Comparisons between theory and experiment are discussed. (Kursetz)


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    Title :

    Supersonic chordwise bending flutter in cascades


    Additional title:

    Sehnenflatterschwingung in Kaskaden bei Ueberschallgeschwindigkeit bei Gasturbinen


    Contributors:


    Publication date :

    1975


    Size :

    68 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




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