| 摘要 |
PURPOSE:To obtain optimum vibration damping effect by providing two sets of vibration dampers which are independently controllable and varying synthetic exciting force of vibration dampers desirably from 0 to maximum while keeping the phase of the exciting force of the vibration dampers optimum to the exciting source. CONSTITUTION:Two sets of vibration dampers A, B are controlled by identical control units, 11a, 11b respectively. The synthetic exciting force by the vibration dampers A, B is put in inverse phase to that of the exciting source, but one of the vibration dampers A is controlled to +theta phase and the other B is to -thetaphase. By controlling this theta to 0 to pi/2, the synthetic exciting force can be controlled to a desirable magnitude. |
