TORSIONAL VIBRATIONS OF THE DRIVE SHAFTS OF MECHANISMS

A study on the torsional vibrations of the drive shafts of mechanisms having variable inertia has been presented in a previous paper by the authors. The drive shaft has been assumed to be a continuous element w ith distributed mass. Continuous element modelling of the shaft leads to a different mathematical formulation. In this previous paper, the b oundary value problem of torsional vibrations of a drive shaft has bee n formulated and the forced response has been examined. In the analysi s, a simpler form of boundary condition for the motor side of the shaf t has been considered. In this paper, the analysis is extended to a mo re general boundary condition of the motor side of the shaft. For this purpose, two solution techniques, a series solution method and a pert urbation solution, are given and the effects of motor characteristics on the behavior of the drive shaft are examined. (C) 1997 Academic Pre ss Limited.