摘要
建立了风机转动时产生的动叶气动噪声和静叶干涉噪声的声学模型，推导了声功率的表达式，根据最小辐射声功率准则导出了有源消声控制方程。
The acoustic model of blade rotation noise and rotor stator interaction noise of fan's rotation has been deduced, also, the expression of sound power has been done. Based on the minimum sound power radiated theory, the active control equation of resource attenuation has been deduced and the influence of parameters of secondary source, such as radius and the number of secondary point source, on attenuation effect has been discussed.
出处
《应用力学学报》
CAS
CSCD
北大核心
1999年第2期75-80,共6页
Chinese Journal of Applied Mechanics
基金
机械结构强度与振动国家重点实验室开放基金
关键词
噪声
有源控制
风机
叶片
noise, active control, fan blade.
