摘要
为了更好地对船舶结构噪声加以控制 ,达到减振降噪的目的 ,就必须确定振源位置、振动的传播途径 ,弄清个别机械在构成共同振动中所起地作用。因而采用了振动功率流的概念 ,提出了两种测量振动功率流的方法———直接测量法和间接测量法 ,建立了两种测量方法的数学模型 ,并且对这两种测量方法加以详细的介绍 ,分析了这两种测量方法各自的优缺点。最后用试验进行了验证。
In order to control the ship structure-borne sound to reach the purpose of reducing vibration and noise,it is necessary to confirm the position of vibration and the transmitting way of vibration,analyze functions of each machine in the vibration system.So this paper introduced vibration power flow,also introduced two methods to measure-direct measurement and indirect measurement and their advantages and shortcoming.Last experiment for measuring power flow is made to identify the power flow theory.
出处
《噪声与振动控制》
CSCD
2001年第1期13-17,12,共6页
Noise and Vibration Control
