摘要
考虑扰动频率的影响,建立流体动压润滑可倾瓦轴承扰动压力雷诺方程。针对目前可倾瓦轴承有限差分数值算法不易联立求解等问题,提出基于PDE工具箱有限元数值求解方法。理论分析和计算结果均表明,扰动压力是轴承参数、静态工作点参数和扰动频率的函数,扰动压力与扰动频率密切相关;扰动频率为0时,复数域扰动压力虚部为0;随着扰动频率的增大,扰动压力实部变化不大,虚部随之增大。
Considering the effects of the perturbation frequency of the shaft and pads,perturbation pressure Reynolds equation for hydrodynamic lubricating tilting pad bearings was set up. Aimed at the problem that the finite difference numerical algorithm of tilting pad bearing was not easy to get a coupling solution,the finite element numerical method based on PDE toolbox was proposed. Theoretical analysis and the numerical results indicate that the perturbation pressure is the function of bearing parameter,the static working point parameter sand perturbation frequency. The perturbation pressure is closely related to perturbation frequency. When perturbation frequency is 0,the imaginary part of complex domain perturbation pressure is 0. The real part of the perturbation pressure has little change,while the imaginary part is enhanced with the increasing of perturbation frequency.
出处
《润滑与密封》
CAS
CSCD
北大核心
2017年第2期29-34,55,共7页
Lubrication Engineering
基金
国家自然科学基金项目(51375178)
关键词
扰动频率
可倾瓦轴承
扰动压力
雷诺方程
perturbation frequency
tilting pad bearing
perturbation pressure
Reynolds equation
