Study on vibration characteristics of badminton racket embedded in acoustic black hole structure

According to the principle of acoustic black hole effect, a badminton racket design method of embedded one-dimensional acoustic black hole structure was proposed. Based on the finite element simulation analysis, the broadband vibration attenuation characteristics of one-dimensional acoustic black hole structure were studied. The results show that this structure can not only ensure the light quality of the system, but also achieve good vibration reduction effect. In the absence of damping, a small truncation can make the reflection coefficient increase rapidly, and the larger the truncation, the worse the vibration suppression effect. The combination form of one-dimensional acoustic black hole structure and damping material shows obvious formant suppression in the wide band range, and the larger the thickness of the damping layer and the closer the location of the damping layer to the tip, the more obvious the damping effect.