Structure-borne sound attenuation at corner interface with dynamic vibration absorber attached

被引:1
作者
Che C.-D. [1 ]
Chen D.-S. [1 ]
机构
[1] State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University
关键词
Corner interface; Dynamic vibration absorber; Non-dimensional coefficients; Structure-borne sound; Wave approach;
D O I
10.1007/s12204-011-1220-6
中图分类号
学科分类号
摘要
Structure-borne sound attenuation at corner interface of two plates with dynamic vibration absorber attached is investigated by wave approach. Equations governing transmission and reflection coefficients are deduced by introducing some non-dimensional coefficients, which help to reveal the physical sense inside and to simplify the analysis. Numerical investigation on vibration energy transmission of bending wave is carried out as well. The results from measurement and prediction show almost the same trends in the simplified experiment. It is found that energy transmission at corner interface depends greatly on whether the dynamic vibration absorber attached acts at resonance and is relatively lower right after the nature frequency of dynamic vibration absorber. Furthermore, the dynamic vibration absorber attached provides less energy transmission of bending wave than blocking mass at the end of passing band". © 2011 Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg."
引用
收藏
页码:750 / 758
页数:8
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