Abstract
Active vibration damper have been gradually used to reduce vibration drastically and adaptively. One of the main defects is to require a big amount of energy. This paper proposes an active mass type regenerative damper. Vibration energy is converted into electric power and stored in the electric battery. But the damper has nonlinear characteristics with dead zone. For lowspeed motion, passive or active control algorithms are applied to the same actuator to achieve good damping performance. This idea is applied to a dynamic absorber system which is composed of electrodynamic actuator and spring. The system is simulated on a computer and a simple experiment is performed. The results are showing that the system has better performance than the pure passive damper and the energy is regenerated.
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