Nickel-based single crystal turbine blades produce random crystal orientation deviations during casting, which affect its resonance characteristics. The influence of random orientation deviations on the blade dynamic frequency was studied based on the Euler angle rotation, and the influence rule was revealed using a three-dimensional diagram. The Campbell diagram was used to analyze the influence of random orientation deviations on the blade resonance characteristics. The results provide distribution diagrams of the blade resonance margin and the crystal orientation range corresponding to the unsatisfied safe margin. The effect of orientation deviations on the blade resonance margin is so serious that it must be considered during blade vibration design.


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    Title :

    Effect of Orientation Deviation on Resonance Characteristics of Single Crystal Turbine Blades


    Contributors:
    Zhao, Y. C. (author) / Gao, H. S. (author) / Wen, Z. X. (author) / Yang, Y. Q. (author) / Wang, J. J. (author) / Zhang, X. H. (author) / Yue, Z. F. (author)

    Published in:

    AIAA Journal ; 58 , 6 ; 2673-2681


    Publication date :

    2020-06-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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