Characteristic properties of subharmonic oscillations and their application in vibration engineering

The results of a theoretical and experimental study of subharmonic vibrations in nonlinear mechanical systems of different structural complexity are presented. Specific nonlinear properties of subharmonic regimes (complex vibration spectrum, essential asymmetry of time response, predominance of low-frequency harmonic components in vibration spectrum, etc.) are studied. It is shown that utilizing these nonlinear effects ensures more effective operation of vibromachines for different technological purposes (vibrocompaction, vibroforming, vibration emptying, etc.). The original procedure of program-simulated actuation of subharmonic vibromachine is proposed.