Abstract

This paper proposes a balancing method of flexible rotor based on nonstationary data which the rotating speed of the rotor increases or decreases. The rotor/bearing system is modeled by FEM in order to obtain transient amplitude and phase angle and to confirm the exist of the point(fixed phase angle) which dose not change the phase angle when angular acceleration changes. Followings are concluded; transient balancing is possible for balancing of flexible rotor, the fixed phase angle exists any character of bearing and it is useful for the balancing of flexible rotor.

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