摘要
针对某型号轻型共轴航空活塞发动机,基于现有液力悬浮泵研究基础,设计一种离心式液力悬浮轴承并进行结构及参数设计,通过Fluent软件对轴承的径向流道进行流场仿真,提出用2条同心圆弧组成的径向流道替代原设计的优化方案。结果表明,优化后轴承的流道出口压力为10 Pa左右,出口轴向速度为26.592 m/s左右,达到了径向悬浮条件。
The centrifugal hydrodynamic suspension bearings for a light coaxial aero-piston engine are designed based on existing research foundation of hydrodynamic suspension pumps,the structure and parameters are designed.The flow field of radial flow path of the bearings is simulated by Fluent software,and an optimization scheme is proposed,that is,a radial flow path composed of two concentric arcs is used to replace the original design scheme.The results show that the outlet pressure of flow path of optimized bearings is about 10 Pa,and the axial velocity at outlet is about 26.592 m/s,reaching the radial suspension condition.
作者
郑宇惟
邓涛
熊志豪
吴玉泽
谭溪
ZHENG Yuwei;DENG Tao;XIONG Zhihao;WU Yuze;TAN Xi(School of Mechatronics and Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,China;School of Aeronautics,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Key Laboratory of Green Aviation Energy and Power,Chongqing 401120,China;The Green Aerotechnics Research Institute of Chongqing Jiaotong University,Chongqing 401120,China)
出处
《轴承》
北大核心
2023年第5期18-23,共6页
Bearing
基金
重庆市技术创新与应用发展专项重点项目(cstc2019jscx-fxydX0028)
重庆市教育委员会科学技术研究重点项目(KJZD-K202000701)
绿色航空能源动力重庆市重点实验室开放基金重点项目(GATRI2021F01001A)。
关键词
滑动轴承
航空发动机
液力悬浮轴承
流道
结构设计
建模
仿真
plain bearing
aeroengine
hydrodynamic suspension bearing
flow path
structure design
modeling
simulation
