摘要
油膜轴承的性能主要由轴承的动压、静压混合效应决定,以雷诺方程为基础,建立油膜轴承压力特性和油膜间隙函数的数学模型,构造流体连续性方程,采用数值解法求解油膜轴承动静压混合效应,运用MATLAB软件实现油膜轴承压力场的三维仿真。结果表明:合理选择轴承半径、偏心率、转速、油腔半角、油膜间隙、供油压力能获得较理想的动静压油膜混合效应,仿真结果与实测结果接近。
The performance of oil film bearing is mainly depended on hybrid hydrodynamic-static effect, the mathematical models of the pressure characteristics and the oil film clearance for hybrid hydrodynamic journal bearings were firstly formulated on the basis of Reynolds equation. Then the fluid continuity functions were derived and the hybrid hydrodynamic-static effect of oil film bearing was analyzed by using the numerical methods. At last, the pressure field was simulated in 3D by MATLAB. The laws show that ideal hybrid hydrodynamic-static effect can be achieved through elaborative selecting bearing radius, eccentricity,rotation speed,chamber half-angle,film clearance and oil-supply pressure. The simulative results are similar to that of the test results.
出处
《机械设计》
CSCD
北大核心
2010年第7期86-89,共4页
Journal of Machine Design
基金
国家十一五科技支撑计划重点资助项目(2007BAF02B09)
重庆市自然科学基金资助项目(CSTC
2004BB8774
CSTC
2006BB3173)
关键词
油膜轴承
动静压混合效应
MATLAB
仿真
oil film bearing
hybrid hydrodynamic-static effect
MATLAB
Simulation
