L 形加筋板结构的导纳功率流研究  

Mobility Power Flow Analysis on a L Shaped Stiffened Plate

作　　者：李天匀[1] 张维衡[1] 张小铭[1] 

机构地区：[1]华中理工大学船舶与海洋工程系

出　　处：《振动工程学报》1997年第1期112-117,共6页Journal of Vibration Engineering

基　　金：湖北省自然科学基金

摘　　要：Ｌ形加筋板结构的导纳功率流研究李天匀张维衡张小铭（华中理工大学船舶与海洋工程系武汉，４３００７４）摘要针对工程上常用的Ｌ形加筋板结构，利用导纳方法研究了在外载作用下的输入振动功率流和传递振动功率流，考虑了肋骨对板的力和弯矩的影响及粘弹性材料的影响；...The input vibrational power flow and the transmitted vibrational power flow are studied for a L shaped stiffened plate excited by a concentrated harmonic force using a mobility approach.The influences of force and moment caused by ribs and viscoelastic material are included in the vibration equation.The expressions of two kinds of power flow are obtained by using Laplace transformation method and the effects of the number of ribs and excitation location are discussed.The conclusions provide a theoretical basis of optimal design and noise and vibration reduction in engineering.

关 键 词：加筋板 导纳 功率流 减振 降噪 船舶结构 

分 类 号：U661.4[交通运输工程—船舶及航道工程]