NONLINEAR TORSIONAL VIBRATION IN SYNCHRONOUS MOTOR DRIVEN SYSTEMS : 1ST REPORT, ANALYSIS, EXPERIMENT, AND FIELD TEST

Abstract

During the start-up of synchronous motor driven systems, resonant torsional vibration can be caused by the pulsating torque of the motor. In this paper, a method of nonlinear transient analysis for this problem, using a digital computer, is proposed which can treat the effect of backlash. And, with this method, computation time can be saved. The calculated results of this method are in good agreement with the experimental data and the field test data. The vibration phenomena of such systems are examined thoroughly, and some different aspects between the response of nonlinear systems which include backlash and that of linear systems are shown.