高速机构梁类弹性构件声辐射分析与计算

Analysis and Calculation of Acoustic Radiation of a Beam-like Flexible Components in High-speed Mechanisms

以四连杆机构的弹性连杆为研究对象,采用运动弹性动力学分析,求取振体表面法向速度;对其运动过程中的声辐射功率及结构模态声辐射效率进行了预测,为梁类高速运动弹性构件的声辐射控制提供了理论依据。

Based on the kineto elastodynamics analysis of a flexible linkage in four bar mechanism, the surface normal velocity of the linkage is obtained. In addition, the acoustic radiation power and radiation efficiency of the beam is predicted, which provides theoretical basis for the acoustic radiation control of high-speed flexible beam- like components.