非均布变包角可倾瓦轴承性能分析  

Research on the performance of the non-uniform change pad-angle tilting-pad bearing

作　　者：陈涛[1] 邵钢[1] 叶盛鉴[1] 

机构地区：[1]中国船舶重工集团公司第七〇三研究所,黑龙江哈尔滨150036

出　　处：《舰船科学技术》2016年第12期74-78,109,共6页Ship Science and Technology

摘　　要：为满足重载、低速等超常运行工况对可倾瓦轴承的需求,提出了非均布变包角可倾瓦轴承结构。建立了非均布变包角径向可倾瓦轴承的流体动力润滑模型,包括轴承油膜厚度方程、Reynolds方程、能量方程、粘温方程以及瓦块热传导方程和瓦块力矩平衡方程。采用数值方法,求解获得了非均布变包角径向可倾瓦轴承的静态特性,分析了瓦块支点位置分布和瓦块包角大小对轴承润滑性能影响。研究结果表明轴承在较小的支点夹角下承载能力较高;小包角的可倾瓦轴承的最小油膜厚度较小,但其最大油膜压力会有所降低。To meet the heavy load, low-speed and other abnormal operating conditions demand for the tilting-pad bearing, a non-uniform change pad-angle tilting-pad bearing is presented. The hydrodynamic lubrication model for the tilting-pad bearing is established, which includes the oil film thickness equation, Reynolds equation, energy equation, viscosity-temperature equation, heat conduction equation and pad tilting torque balance equation. With numerical methods, the model is solved and the static characteristics of the tilting-pad bearing are obtained. The influences of the distribution location of pad pivot and the tilting pad-angle on the lubrication performances of the bearing are studied in detail. The results show that, the smaller bearing pivot angle, the higher the bearing capacity;the minimum film thickness decreases as the tilting pad-angle decreasing, but the maximum film pressure also decreases.

关 键 词：可倾瓦轴承 REYNOLDS方程 流体动力润滑模型 数值方法 

分 类 号：TH117[机械工程—机械设计及理论]