Calculation of the floquet transition matrix with application to lifting rotor and other dynamic stability problems

Vepa, Ranjan (1979) Calculation of the floquet transition matrix with application to lifting rotor and other dynamic stability problems. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    The problem of calculating the Floquet transition matrix for parametric stability problems is considered. A method of calculating the transition matrix with a minimum number of time steps is described. The method is shown to be extremely efficient for a wide class of problems including flapping stability of a helicopter rotor, helicopter ground resonance with one lag clamper inoperative and dynamic stability of a column with a periodic follower force. The relationship of the method to the classical method of averaging is pointed out.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Floquet transition;Matrix;Lifting rotor;Dynamic stability;13; Amplitude;Angular velocity
    Subjects: ENGINEERING > Structural Mechanics
    Division/Department: Structures Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 21 Dec 2006
    Last Modified: 24 May 2010 09:54
    URI: http://nal-ir.nal.res.in/id/eprint/3815

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