Abstract
In this paper, we propose a new position control system for a dynamic absorber using a neural oscillator synchronized with a structure. The neural oscillator is one of the nonlinear oscillators whish has a property of synchronizing with special external oscillation. In this study, by taking an advantage of the property, we have been developing a new system to control the dynamic absorber. The developed system has led the auxiliary mass for the dynamic absorber to the preset target position by using a PD controller. However, the method could not dissapate the vibration energy of the structure, appropriately. Then, in this paper, we make an improvement to move the auxiliary mass to the target position through the pre-scheduled path. In addition, we also propose a method that the oscillator starts the oscillation after detecting the response of the structure. On this occasion, we take a measure to avoid improper start-up by sensor noise. This paper shows the validity of the proposed system by numerical simulation.
