The General Rotorcraft Aeromechanical Stability Program (GRASP), which is a hybrid between finite element programs and spacecraft-oriented multibody programs, is described in terms of its design and capabilities. Numerical results from GRASP are presented and compared with the results from an existing, special-purpose coupled rotor/body aeromechanical stability program and with experimental data of Dowell and Traybar (1975 and 1977) for large deflections of an end-loaded cantilevered beam. The agreement is excellent in both cases.


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    Title :

    Introduction to GRASP - General rotorcraft aeromechanical stability program - A modern approach to rotorcraft modeling


    Contributors:

    Publication date :

    1986-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





    General Rotorcraft Aeromechanical Stability Program (GRASP): Theory manual

    Hodges, Dewey H. / Hopkins, A. Stewart / Kunz, Donald L. et al. | NTRS | 1990


    General Rotorcraft Aeromechanical Stability Program (GRASP): Theory Manual

    D. H. Hodges / A. S. Hopkins / D. L. Kunz et al. | NTIS | 1990