【摘要】 采用声固耦合技术进行了旋片式真空泵的噪声辐射特性研究。首先通过理论计算，获取了旋片泵的理论排气量和气体压力等参数随转子转角的变化规律，为进行双向流固耦合仿真提供了边界条件；然后对旋片泵排气时的流场进行双向流固耦合数值模拟，获取了排气空间的相关参数分布特征和限位块的形变及受力等特征；最后，进行了气流和限位板的声固耦合数值模拟，获取了限位板振动噪声特性以及排气过程中的气动噪声特性。对研究旋片式真空泵的降振减噪优化设计等有重要意义，也对其他类型真空泵的流场和噪声分析提供了重要参考。更多还原

【Abstract】 A study on the noise radiation characteristics of a rotary vane vacuum pump was conducted using sound structure coupling technology. Firstly, through theoretical calculations, the theoretical displacement and gas pressure parameters of the rotary vane pump were obtained as a function of the rotor angle, providing boundary conditions for conducting bidirectional fluid structure coupling simulation. Then, a bidirectional fluid structure coupling simulation was conducted on the flow field during the exhaust process of the rotary vane pump, obtaining the distribution characteristics of relevant parameters in the exhaust space and the deformation and force characteristics of the limit block. Finally, numerical simulation of sound structure coupling between airflow and limit plate was conducted, and the vibration and noise characteristics of the limit plate as well as the aerodynamic noise characteristics during the exhaust process were obtained. This article is of great significance for the study of vibration reduction and noise reduction optimization design of rotary vane pumps, and also provides important references for the flow field and noise analysis of other types of vacuum pumps.更多还原