TORSIONAL FREQUENCIES OF UNIFORM SHAFTS WITH ELASTIC RESTRAINTS AND ELASTICALLY ATTACHED MASSES.
JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB
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Numerical upper and lower bounds are given to eigenvalues of torsional vibration of the following uniform structures free shaft elastically restrained at a point fixed shaft elastically restrained at a point free shaft with masses elastically attached at points fixed shaft with a mass elastically attached over an interval. Upper bounds were obtained using the well-known Rayleigh-Ritz procedure, lower bonds were obtained using methods developed by Bazley and Fox. Author