Abstract An experimental study on the effect of squeeze film clearance and oil inlet configuration on the displacement response of a Jeffcott rotor supported by squeeze film dampers (SFDs) is presented in this paper. Sealed and open-ended SFDs with three squeeze film clearances and three different oil inlet configurations are studied with different levels of unbalance applied to the system. Results show increased damping with smaller clearance and increased number of oil inlets, while the number and orientation of oil inlets also show an effect on the level of air ingestion into the SFD and some asymmetry in the rotor response.

中文翻译：

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孔进料系统对挤压油膜阻尼器支撑转子响应的影响

摘要 本文介绍了关于挤压油膜间隙和进油口配置对由挤压油膜阻尼器 (SFD) 支撑的 Jeffcott 转子位移响应影响的实验研究。研究了具有三个挤压油膜间隙和三个不同进油口配置的密封和开放式 SFD，并对系统施加了不同程度的不平衡。结果表明，随着间隙的减小和进油口数量的增加，阻尼增加，而进油口的数量和方向也显示出对进入 SFD 的空气吸入水平和转子响应的一些不对称性的影响。