Local resonance type photonic crystal vibration reduction device and equipment

The invention relates to a local resonance type phononic crystal damping device and equipment, which comprises a frame body, a phononic crystal is arranged in the frame body, a mass center adjusting piece is arranged on a vibrator of the phononic crystal, the mass center adjusting piece is connected with a lifting mechanism mounted on the frame body, and the mass center position of the vibrator is adjusted through the mass center adjusting piece so as to realize the adjustment of the band gap of the phononic crystal. The damping device is simple in structure, wide in band gap adjusting range and large in adjusting frequency. 本发明涉及一种局域共振型声子晶体减振装置及设备，包括架体，架体内部设置有声子晶体，声子晶体的振子设置有质心调节件，质心调节件与安装在架体的升降机构连接，通过质心调节件调节振子的质心位置以实现声子晶体带隙的调节，采用本发明的减振装置结构简单，且带隙调整范围广，调整次数多。