控制板壳弯曲振动波导吸振器的统计能量分析

Investigate WVA for Controlling Bending Vibration in Steel Plate by SEA

提出用统计能量分析方法研究控制板壳弯曲振动的波导吸振器的新方案，通过计算相关参数来讨论和分析在安装波导吸振器后板壳振动能量的损失情况．

The energy dissipation of Waveguide Vibration Absorbers (WVA) controlling the bending vibration of the steel plate is discussed and analyzed by the method of Statistical Energy Analysis (SEA). WVA device can absorb vibrational energy. WVA and the vibrating structure whose vibration are to be controlled can be described as three subsystems of SEA model. By analyzing its energy properties, an energy dissipation equation concerned with parameters of environmental temperature, wave frequencies, materials and so on is deduced. The internal loss factors of each subsystem and the coupling loss factors between the subsystems are obtained by the theoretical equation. The numerical simulation shows that the WVA is successful for controlling the vibration of the steel plate.