Research on a New Particle Impact Damper

4th Annual International Workshop on Materials Science and Engineering

Du, Yanchen^1 ; Guan, Zhenxing^1

School of Medical Instrument and Food Engineering, University of Shanghai For-Science and Technology, Shanghai, China^1

关键词: Fine particles;    Impact damper;    Irreversible energy;    Momentum exchange;    Particle dampers;    Particle impact dampers;    Vibration energies;    Vibration-damping;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012073/pdf
DOI  :  10.1088/1757-899X/381/1/012073

来源: IOP

【 摘 要 】

The conventional impact damper cannot completely exhaust vibration energy through momentum exchange and friction. To overcome these shortcomings, this paper proposes a new particle impact damper (PID) which for the first time introduces the fine particle plastic deformation as an irreversible energy sink. Then, the experiments of the cantilevered beam with the CID and that with the PID are respectively carried out to investigate the behaviour of PID. The experimental results indicate that the PID has a better performance in vibration damping than the CID. And the PID works well in control of the vibration with frequency lower than 50 Hz, which is absent to the non-obstructive particle damper. Thus, the PID has a bright and significant application future because most of the mechanical vibration falls in the range of low frequency.