Particle damping was firstly used in periodic structures with local area resonances. The band gap calculation formula of composite structures with periodic particle damping was derived and validated. Through designing a composite slab structure with periodic particle damping and measuring its vibration transmission features, the influence factors and change laws of the band gap features for the composite structure with periodic particle damping were studied. The results showed that ① a vibration acute attenuation area appears in the vibration transmission features of the composite structure with periodic particle damping, so the composite structure with periodic particle damping has the band gap features; ② the band gap starting frequency of a slab structure with periodic mass increases at first and then decreases with increase in mass; when the mass is 50 g, the band gap starting frequency of the structure is the maximum; ③ compared with a structure with an equal mass, the band gap of the structure with periodic particle damping is wider and the maximum attenuation amplitude value is larger; ④ when the space between particle dampers is 0 cm, 2 cm, 4 cm and 6 cm, respectively, the band gap width of the slab structure with periodic particle damping becomes larger gradually, they are 100 Hz, 170 Hz, 230 Hz, and 400 Hz, respectively, and the maximum attenuation amplitude value becomes larger gradually.
胡溧，杨驰杰，杨啟梁，施耀贵. 周期颗粒阻尼复合板结构的带隙特性研究[J]. 振动与冲击, 2017, 36(3): 77-82.
HU Li, YANG Chijie, YANG Qiliang, SHI Yaogui. Band gap features of a composite slab structure with periodic particle damping. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(3): 77-82.
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