多筋板振动特性的导纳法研究  

Study on Vibration of Multi-Beam-Stiffened Plate by Structural Mobility

作　　者：陈晓利[1] 盛美萍[1] 王彦琴[1] 

机构地区：[1]西北工业大学航海学院,西安710072

出　　处：《噪声与振动控制》2005年第3期9-12,共4页Noise and Vibration Control

基　　金：国家自然科学基金(编号:50375121);全国优秀博士学位论文基金;西北工业大学重点扶持项目资助。

摘　　要：了解结构内部的能量传递规律是研究复杂系统结构间能量传递的基础。研究了单加筋板和多加筋板的振动特性,结果表明:筋的存在改变了板振动能量对称分布的特性,加筋处振动能量呈阶梯状衰减,加强筋阻碍了振动能量的传播。It′s basic to know the rules of vibration energy transmission interior of structures in order to study the vibration energy transmission between structures in a complex system. In this paper, the vibration characteristics of multi-beam-stiffened plate are studied by using the mobility of typical structures, the existence of the beams is looked as line-exciters to the plate. Results show that: because of the beams, the symmetrical characteristic of vibration energy in infinite plate is remodeled, at the position of beams, the vibration energy attenuates in the terms of ladder, so the beam could block the transmission of the vibration energy.

关 键 词：振动与波 加筋板 导纳法 振级 振动控制 功率流 

分 类 号：TB53[理学—物理]