通过对所提出的薄壁金属旋转圆筒减振降噪措施的实验研究 ,发现对筒体本身进行表面处理减少声辐射能量 ,采用附加阻尼装置消耗振动能量来抑制筒体发声和采用隔振手段减少筒体振动能量向周围物体的传递 ,避免二次结构声 ,虽然都能有效地降低筒体的噪声辐射 ,但附加豆包阻尼器的效果较优 ,组合起来效果更佳 Through the experimental research on the vibration and noise reduction measures of the thin-walled metal rotating cylinder, it is found that the surface treatment of the cylinder itself can reduce the sound radiation energy, and the additional damping device consumes the vibration energy to restrain the sound of the cylinder and adopt the vibration isolation means Reduce the vibration energy of the cylinder to the surrounding objects, and avoid the secondary structural noise. Although all of them can effectively reduce the noise radiation of the cylinder, the effect of the additional bean damper is better and the combination is more effective