486 履歴現象を利用した非線形振動系の制振法

概要

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This study proposes a method to suppress the resonance vibration occured on nonlinear systems. In recent years, many researchers have been reported about methods to suppress nonlinear vibration. Nonlinear systems are difficult to control because of our nonlinear characteristics. Our method utilizes jump phenomena in the characteristic of a nonlinear system, and it is easy to adapt actual nonlinear vibration systems. This paper shows that resonance vibrations occured on nonlinear system are effectively suppressed by using a pulsating force. Our experimental setup is a Duffing system constructed of a thin SUS430 stainless steel sheet. The pulsating force is produced by the collisions between a stainless steel sheet and a steel stick. The major harmonic resonace vibration on our system is made a 93 percent reduction in amplitude by our method.
2009-08-03