ステップモータ駆動系の衝突に伴う非線形過渡振動

概要

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This paper describes an experimental and theoretical investigation of the nonlinear transient vibration coupled with the nonlinear torque and the impact at the mechanical stopper in step-motor-driven systems. The first impact occurs due to the rotor reaching the stopper from constant-speed driving, and is continued by the succeeding drive after the first impact. Experimental observation showed that the impact speed after the first impact becomes maximum at twice the driving frequency of the motor natural frequency, at which frequency the torque ripple is well known to be suppressed in a simple system without a stopper. By introducing an equivalent linear model, it was theoretically revealed that this particular phenomenon is caused by a kind of resonance between the decreased motor natural frequency due to the softening magnetic spring and the dominant frequency of the torque fluctuation under continuous impact.
一般社団法人日本機械学会の論文
1991-03-25