The former causes forced vibration at the circular frequency of the crank shaft and the latter causes transient vibration at the natural frequency of the press.

 
  • 慣性力激發(fā)的振動(dòng)是以曲軸轉速為頻率的強迫振動(dòng),加工力激發(fā)的是以壓機固有頻率為頻率的過(guò)渡振動(dòng)。
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