An improved Krylov precise time-step integration algorithm is proposed to solve the second-order differential equations with arbitrary excitation directly and efficiently. This method could tackle the complex excitations and improve the computing efficiency by determining the bound of iterative subspace ( m ) accurately. The upper bound of m could be obtained by computational efficiency analysis, whereas the error estimation is employed to compute the lower bound of m . Hence, the application of the improved Krylov precise time-step integration algorithm could be extended widely by determining the bound of m . Two numerical examples are also presented to demonstrate the practicability and the applicability of the proposed method.


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    Title :

    Improved Krylov Precise Time Integration Algorithm for Structural Dynamic Equations


    Contributors:
    Chen, Z. L. (author)

    Published in:

    AIAA Journal ; 57 , 8 ; 3548-3555


    Publication date :

    2019-08-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English