Abstract
In this paper, our experimental investigations show that the resonance vibration occured on Duffing system is effectively suppressed by the pulsating force. In recent years, many researchers have been reported about methods to suppress the flexible structure's vibration. Many flexible structures is difficult to control, because they have nonlinear characteristics. Our experimental setup is a Duffing system constructed of a thin SUS430 stainless steel sheet which is a simple model of flexible arm. The pulsating force is produced by the collisions between a stainless steel sheet and a steel stick. As a result of our experiments, we clarify that the reduction of the major harmonic resonance and the super harmonic resonance in the Duffing system is accomplished by adding the pulsating force. Therefore, we consider the pulsating force make effecive use of the reduction of the flexible sturcture's vibration.
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