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中文摘要：
从车身板件振动入手，结合几何参数、材料参数对带隙的影响，设计出具有中低频带隙的垂向振子声子晶体结构，并据此制备声子晶体样件，测定材料参数，进行振动传递特性试验，验证理论的正确性。将声子晶体结构粘贴于顶棚表面，得到其仿真带隙，使顶棚中低频的振动衰减了30dB以上，为声子晶体在车身板件减振中的实际应用提供了依据。
英文摘要：
Based on the body panelsr vibration, with the influence of geometrical parameters and material pa rameter on the band gap, the vertical oscillator phononic crystal structure with low frequency band gap was designed, the phononic crystal sample was prepared, material parameters were determined accordingly test, and the vibration transfer characteristics experimental results demonstrated that the theory was correct. Phononic crystal structure was pasted on the ceiling, got its simulation band gap, which can reduce the ceiling vibration at low frequency more than 30dB. Basis for the application of phononic crystal on body ceiling＇s vibration attenuation was provided.
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