NASA Technical Reports Server (NTRS) : Gyrodampers pdf

NASA Technical Reports Server (NTRS) : Gyrodampers

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Description of the Book:

The problem of controlling the vibrations of a large space structures by the use of actively augmented damping devices distributed throughout the structure is addressed. The gyrodamper which consists of a set of single gimbal control moment gyros which are actively controlled to extract the structural vibratory energy through the local rotational deformations of the structure, is described and analyzed. Various linear and nonlinear dynamic simulations of gyrodamped beams are shown, including results on self-induced vibrations due to sensor noise and rotor imbalance. The complete nonlinear dynamic equations are included. The problem of designing and sizing a system of gyrodampers for a given structure, or extrapolating results for one gyrodamped structure to another is solved in terms of scaling laws. Novel scaling laws for gyro systems are derived, based upon fundamental physical principles, and various examples are given

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 2/1/1979
• Year: 1979
• Book Topics/Themes: NASA Technical Reports Server (NTRS), CONTROL MOMENT GYROSCOPES, GYROSCOPIC STABILITY, LARGE SPACE STRUCTURES, STRUCTURAL VIBRATION, VIBRATION DAMPING, ACTIVE CONTROL, DYNAMIC CHARACTERISTICS, EIGENVECTORS, FINITE ELEMENT METHOD, GIMBALS, JACOBI MATRIX METHOD, SCALING LAWS, Aubrun, J. N., Margulies, G

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