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本文介绍了柔性约束颗粒冲击阻尼技术及其减振机理;并将该技术应用于薄壁密闭腔体壁板振动和内部噪声的控制。实验证明,该技术结构简便、控制频带宽、减振降噪效果显著。
In this paper, the flexible constrained particle impact damping technology and its damping mechanism are introduced. The technique is applied to the vibration control and internal noise control of the thin-walled airtight chamber. Experiments show that the technology has the advantages of simple structure, wide control frequency band and remarkable effect of vibration and noise reduction.