TY - JOUR
T1 - The effect of an undamped finite degree of freedom 'fuzzy' substructure
T2 - Numerical solutions and theoretical discussion
AU - Weaver, R. L.
PY - 1996/11
Y1 - 1996/11
N2 - A single degree of freedom master oscillator attached to a simple undamped N degree of freedom 'fuzzy substructure' is studied numerically and theoretically. Results are found to be in accord with the predictions of the Pierce Sparrow-Russell theory at early times; in particular, the master oscillation manifests an apparent damping. At later times, however, the damping ceases and the energy is returned from the fuzzy to the master. The precise manner in which the energy is returned, and the time taken to do this, depend on the details of the mass and frequency distribution within the fuzzy, and in particular on the distribution of spacings between the fuzzy resonances.
AB - A single degree of freedom master oscillator attached to a simple undamped N degree of freedom 'fuzzy substructure' is studied numerically and theoretically. Results are found to be in accord with the predictions of the Pierce Sparrow-Russell theory at early times; in particular, the master oscillation manifests an apparent damping. At later times, however, the damping ceases and the energy is returned from the fuzzy to the master. The precise manner in which the energy is returned, and the time taken to do this, depend on the details of the mass and frequency distribution within the fuzzy, and in particular on the distribution of spacings between the fuzzy resonances.
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U2 - 10.1121/1.417194
DO - 10.1121/1.417194
M3 - Article
AN - SCOPUS:0029858236
SN - 0001-4966
VL - 100
SP - 3159
EP - 3164
JO - Journal of the Acoustical Society of America
JF - Journal of the Acoustical Society of America
IS - 5
ER -