調速機付ボールねじ式防振器によるはりの振動抑制

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タイトル別名
  • Vibration control of beams by ball screw type dampers with a governor.
  • チョウソクキツキ ボールネジシキ ボウ

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抄録

The forced nonlinear vibrations of simple beams supported with two kinds of ball screw type dampers are discussed both numerically and experimentally. The dampers are composed of a ball screw, a flywheel and a flyball or perpendicular type governor, and possess nonlinear characteristics. The beam is replaced by a lumped mass system and the Continuous System Simulation Language is used to simulate the motion of the masses and the damper on a digital computer. The results may be summarized as follows : (1) Two types of dampers are effective for suppressing the amplitude of the beam at the point of attachment of the damper at the first resonance. (2) The linear solution which is solved by regarding the governor as a flywheel differs from the nonlinear solution in the vicinity of the first resonance frequency of the beam. (3) Each damper approaches the snubber for larger values of moment of inertia J of the flywheel, and acts like the dynamic vibration absorber for smaller values of J.

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