PURPOSE: To provide an abnormal vibrational wave-form producing device by which an abnormal vibrational wave-form can be automatically produced in a short time.
CONSTITUTION: An abnormal vibrational wave-form producing device is provided with a schedule input device 1 by which the number of revolutions and the revolution synchronization component that have been previously determined in correspondence to a prescribed discrete time, and the amplitude and phase of the prescribed order ratio component, and also the amplitude of the natural frequency component are output for each time, a vibrational wave-form producing means 2 by which the output of the schedule input device is received and the digital vibrational wave-form is output, and a D/A converter 3 for receiving the output of the vibrational wave-form producing means.
YASUDA CHIAKI
ITO RYOJI
