摘要
在对飞机壁板附加动力吸振器前后的振动分析基础上,设计了适合于飞机壁板安装的动力吸振器,在一块飞机壁板上进行了实验,结果与理论计算一致。研究表明,动力吸振器用于飞机壁板减振降噪具有良好的前景。
For the purpose of cabin noise reduction, in this paper, the plane panel's vibrational characteristics before and after equipped with dynamic vibration absorbers are analyzed, the formulae for calculating the vibration and noise reduction of the plane panel with dynamic vibration absorbers are given, and the dynamic vibration absorber's parameters are discussed. On the basis of this, a kind of dynamic vibration absorber is designed and experiments are carried out. The agreement between the estimated and measured values is in most cases very good. It shows that the dynamic vibration absorber has great advantages in plane panel's vibration and noise reduction.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1993年第10期B506-B509,共4页
Acta Aeronautica et Astronautica Sinica
关键词
动力吸振器
减振降噪
模态
声辐射
dynamic vibration absorber, vibration and noise reduction, mode, sound radiation
