面导纳及其振动特性  

Area Mobility and Its Vibration Characteristics

作　　者：戴珏[1] 

机构地区：[1]深圳职业技术学院制造系,深圳518055

出　　处：《噪声与振动控制》2003年第4期1-4,8,共5页Noise and Vibration Control

基　　金：留学回国人员科研启动基金(教外司留2000 367号)

摘　　要：本文研究反映结构之间接触表面上能量传递情况的面导纳及其振动特性。讨论了均布力和均布速度激励状态下矩形面导纳的计算方法,分析了受接触面积的大小和形状以及激励频率影响下的面导纳的动态特性及其与传统的点导纳的区别,提出了减少结构间接触面积上振动能量传递、提高隔振效果的有效方法。Area mobility and its vibrational characteristics are investigated in this paper.The calculating methods of the rectangular area mobility subject to a uniform conphase force excitation and a uniform conphase velocity excitation are given.The vibrational characteristics affected by the size and shape of the contact area and the exciting frequency are analyzed.The difference between area mobility and point mobility is compared.Some methods to decrease vibratory power transmission are also given in the paper.

关 键 词：面导纳 振动特性 激励 矩形 传递 结构 能量 接触面积 

分 类 号：TH113.1[机械工程—机械设计及理论]