噪声与振动控制Issue(2)：200-202,211,4.DOI:10.3969/j.issn.1006-1335.2014.02.046
不可分离结构的损耗因子测量研究
Measurement and Study of Loss Factors for Inseparable Structures
巨乐 1王敏庆 1顾金桃1
作者信息
- 1. 西北工业大学 动力与能源学院，西安 710072
- 折叠
摘要
Abstract
Based on an actual project, a measurement method of dissipation and coupling loss factors for inseparable structures is presented. In this method, the dissipation loss factors can be considered as an approximation of total loss factors of the inseparable structures according to the method. Then the coupling loss factors can be calculated using the dissipation loss factors and steady vibration energy ratio. Additionally the difference between the total and dissipation loss factors affected by coupling loss factors is simulated. The result shows that the total loss factors are very close to the dissipation loss factors when the coupling loss factors are far less than the dissipation loss factors. Finally, the loss factors of a coupled bi-cylindrical shell structure are measured, and the experiment results show that the proposed method is reasonable and reliable.关键词
振动与波/统计能量分析/损耗因子/测量Key words
vibration and wave/statistical energy analysis (SEA)/loss factor/measurement分类
数理科学引用本文复制引用
巨乐,王敏庆,顾金桃..不可分离结构的损耗因子测量研究[J].噪声与振动控制,2014,(2):200-202,211,4.
