机器结构噪声转动功率流的测量  

Measurement of Rotational Structure-borne Power Flow of Machine

作　　者：陈胜鹏[1] 王照奎[1] 邱桂明[1] 

机构地区：[1]汕头大学理学院物理系,汕头515063

出　　处：《汕头大学学报（自然科学版）》2003年第4期52-58,共7页Journal of Shantou University：Natural Science Edition

摘　　要：利用互功率谱的方法对安装在混凝土地板上的小型排气扇工作时产生的转动结构声功率流进行了测量 。Measurements of the rotational components are made by using the cross spectrum method for a small ventilation fan resiliently mounted on the concrete floors when the machine works. The structure borne power flows for different anti vibration mounts with different stiffness and different components are compared.

关 键 词：机器结构噪声 转动功率流 互功率谱 劲度系数 

分 类 号：TB533.1[理学—物理] TB95[理学—声学]