整体式挤压油膜阻尼器在齿轮箱中的应用

以一台单级直齿齿轮箱为研究对象,设计了适配的整体式挤压油膜阻尼器(integral squeeze film damper,简称ISFD)结构,对ISFD在齿轮箱中的应用进行了研究。分别测量了在不同载荷和转速工况下,齿轮箱安装传统刚性支承和ISFD弹性阻尼支承后的箱体振动。研究结果表明,ISFD弹性阻尼支承可以有效降低不同转速下齿轮箱的冲击振动,改善齿轮箱的动力学性能,保证齿轮系统稳定运行。不同载荷工况下的实验数据表明:ISFD支承对不同负荷的齿轮箱有较好的减振性能;对齿轮箱的啮合频率及其倍频等高频振动成分,ISFD也有较好的抑制效果。该研究结果可为ISFD在齿轮箱中的实际工程应用提供参考。

Application of Integral Squeeze Film Damper in Gearbox

The dynamic excitation of the gear system is transmitted to the box primarily through the bearing. In order to reduce the vibration response of the box, appropriate measures can be taken at the bearing position. Taking a single-stage spur gearbox as the research object, a suitable integral squeeze film damper (ISFD) structure is designed, and the application of ISFD in the gearbox is studied. The vibrations of the gearbox body with the traditional rigid support and ISFD elastic damping support are installed under different load and speed conditions are measured. The research results show that the ISFD elastic damping support can effectively reduce the shock vibration of the gearbox at different speeds, improve the dynamic performance of the gearbox, and ensure the stable operation of the gear system. The experimental data under different load conditions show that ISFD is effective for gears with different loads. The gearbox has good damping performance; ISFD has a good suppression effect on high-frequency vibration components such as the meshing frequency of the gearbox and its frequency multiplication. The research results can provide references for the practical engineering application of ISFD in gearboxes.