Development of a Dynamic Damper Using Fluids and Rubber

摘要

Dynamic dampers are usually made of rubber and rigid mass elements. They are widely used for cutting the resonance of mechanical structures. In this research, modification was made to a traditional damper by introducing small chambers, channels (orifices) and fluid into the rubber. By using the resonance of the fluid, a two-degree-of-freedom damper was developed with a slight weight increase. Its characteristics and vibration reduction effects were formulated and investigated experimentally. It was demonstrated that the damper works in a broad frequency range as compared to traditional dampers and can cut two resonance peaks simultaneously.