Experimental study of rapid oscillation suppression of a pendulum on the basis of intermittent mass motion

摘要

In this paper, the experimental setup of a pendulum with a moving mass is established to study the rapid suppression of pendulum oscillation. The intermittent motion of the moving mass is employed to achieve more efficient suppression. The proposed control method can reduce mass motion distance rapidly in the vicinity of the vertical position to ensure the stability of the system. The mass motion is triggered by recognizing the pendulum angle in real time so that the nonsynchronous motion can be avoided. With the verification of the accuracy of the controlled motion distance, the effects of several motion parameters of the moving mass are studied. Moreover, the experimental results reveal that the proposed control strategy is more efficient in oscillation suppressing than the traditional continuous control method. The experimental setup and the proposed approach can be applied in pendulum-like structure design and oscillation control.