摘要
用有限元素法和有限差分法建立了可倾瓦轴承瓦块三维弹性变形及热效应的计算模型．分析了由瓦面油膜压力引起的三维瓦块弹性变形对采用小包角径向可倾瓦及瓦块支点非均匀密集布置方式下滑动轴承热动力润滑性能的影响． 结果表明：在大型低速重载条件下。
The finite element method and finite difference method are employed to establish the model for considering the three dimensional elastic deformations of pad and thermal effects in a tilting pad journal bearing. The effects of the three dimensional pad deformations on the thermohydrodynamic performance of large scale tilting pad journal bearing with non uniformly and closely packed pad pivot distributions at small pad wrap span are analyzed in detail. The results show that the pad deformations have considerable effects on both the static performance and the dynamic characteristics under the large scale and the low speed and heavy duty conditions.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
1999年第3期255-260,共6页
Tribology
基金
国家自然科学基金
关键词
可倾瓦轴承
瓦块弹性
水轮发电机组
润滑性能
tilting pad journal bearing
non uniform pivot distribution
pad deformation
low speed and heavy duty
thermohydrodynamic performance
