AP1000核主泵水润滑轴承性能仿真  

Characteristics simulation of water-lubricated journal bearings in AP1000 nuclear main pump

作　　者：赵志明[1] 袁小阳[2] 

机构地区：[1]陕西科技大学机电工程学院,陕西西安710021 [2]西安交通大学现代设计及转子轴承系统教育部重点实验室,陕西西安710049

出　　处：《陕西科技大学学报（自然科学版）》2016年第4期150-155,共6页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(51305246);陕西省教育厅专项科研计划项目(14JK1107);陕西科技大学博士科研启动基金项目(BJ13-07)

摘　　要：水润滑轴承技术是制约我国核电设备发展的核心技术,开展AP1000水润滑轴承性能仿真、获得轴承设计技术具有理论和工程价值.给出了水润滑轴承性能分析模型,对导轴承的静态特性和动态特性进行了仿真及分析,获得了不同工况下的轴承静特性和动特性变化规律.结果显示:承载瓦最大水膜压力为0.45 Mpa;当转速升高时水膜厚度增加11微米,判断出导轴承在600rpm已基本形成水膜,工作转速下已处于全膜润滑状态;轴承动特性系数对转速的变化敏感程度低于载荷的变化.本文工作可为水润滑径向滑动轴承设计提供理论支持.Among the AP1000 technology introduced, water-lubricated bearing technology is the core technology that restricts the further development of nuclear power equipment in China. Therefore,it is of theoretical and engineering value to performance simulation of the water-lubricated bearing of the AP1000 core pump and to obtain the bearing design technology. Considering the AP1000 nuclear main pump shaft characteristics, the corresponding water-lubricated journal bearing structure and the basic equation were given. Static and dynamiccharacteristics of water-lubricated bearing were simulated and analysis. The static and dynamicperformances were achieved. The results shown that the maximum water film pressure was 0. 45 Mpa,the thickness of the water tilm increases by 11 microns when the rotating speed increasing,the water tilm had been formed in the 600 rpm, and the bearings had been in full film lubrication state with working speed. Bearing dynamic coefficients of speed were sensitive to the change of the speed changing than to the load changing. The work of this paper can provide theoretical support for the design of water-lubricated radial journal bearing.

关 键 词：核主泵 水润滑径向滑动轴承 静特性 动特性系数 

分 类 号：TH117.1[机械工程—机械设计及理论]