This paper summarizes the development of the methods and a computer program to compute the probability of instability of dynamic systems that can be represented by a system of second-order ordinary linear differential equations. Two instability criteria based upon the eigenvalues or Routh-Hurwitz test functions are investigated. Computational methods based on a fast probability integration concept and an efficient adaptive importance sampling method are proposed to perform efficient probabilistic analysis. A numerical example is provided to demonstrate the methods.


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    Title :

    Probabilistic Methods for Rotordynamics Analysis


    Additional title:

    Sae Technical Papers


    Contributors:
    Fossum, A.F. (author) / Millwater, H.R. (author) / Rheinfurth, M.H. (author) / Torng, T.Y. (author) / Wu, Y.-T. (author)

    Conference:

    Aerospace Atlantic Conference & Exposition ; 1991



    Publication date :

    1991-04-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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