关键词: 机电集成, 超环面传动, 内共振, 多尺度法, 强迫振动

Abstract:

Electromechanical integrating toroidal drive is a new-style generalized composite transmission,where the power and control are integrated.Considering multiple relations of more natural frequencies in derive system,nonlinear differential equations with multiple internal resonances were presented.
Then,time responses figures of free vibration system were obtained by multiscale method,
and vibration performance were studied when excited frequency was near to a natural
frequency.The results show that energy transfers among modes because of internal resonances,Transient responses of all parts slow decay compared with non-internal resonances.When excited frequency is near to a natural frequency of derive system,amplitudes of
all parts will increase larger,and vibration offsets occur.Nonlinear characteristics
become very complicated and there are more resonance regions,so internal resonances should be avoided during parametric design.

Key words: electromechanical integration, toroidal drive, internal resonance, multiscale method, forced vibration