Review of mid-to-high frequency energy flow analysis method for vibro-acoustic systems
YOU Jin1, MENG Guang2, LI Hong-guang2
1 Institute of Manned Space System Engineering, China Academy of Space Technology, Beijing 100094, China;2 State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract：Energy flow analysis (EFA) method is an effective simulation tool that models the dynamic behavior of vibro-acoustic systems. This approach involves only a few assumptions, and can provide information concerning the spatial evolution of the dynamic response on subsystems, which reflects the significant advantage of the method with respect to practical application. In this paper, the development of the differential energy equations of several wave types of different structural/acoustic components, as well as their theoretical basis, are reviewed first. Then, the achievements that have been made to develop the capability of EFA in dealing with several kinds of complex coupling problems, which include structure/structure coupling, structure/fluid coupling, and some other specific coupling situations, are elaborated. Lastly, random energy flow analysis (REFA), which applies to the situation where random excitations are exerted, is introduced, and studies concerning investigation on the differences and theoretical relationship between REFA and classical statistical energy analysis (SEA) are reviewed.
游进;孟光;李鸿光. 声振系统中高频能量流分析法研究进展[J]. , 2012, 31(11): 62-69.
YOU Jin;MENG Guang;LI Hong-guang. Review of mid-to-high frequency energy flow analysis method for vibro-acoustic systems
. , 2012, 31(11): 62-69.
2012, Vol. 31 
