期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Thermal and tilt effects on bearing characteristics of hydrostatic oil pad in rotary table 被引量:3
1
作者 刘志峰 湛承鹏 +3 位作者 程强 赵永胜 李小燕 王义达 《Journal of Hydrodynamics》 SCIE EI CSCD 2016年第4期585-595,共11页
Hydrostatic pads are key components of a constant flow compensation hydrostatic rotary table. The tilt and thermal effects due to the partial load, the manufacturing errors and the friction must be considered. However... Hydrostatic pads are key components of a constant flow compensation hydrostatic rotary table. The tilt and thermal effects due to the partial load, the manufacturing errors and the friction must be considered. However, designers are more likely inclined to ignore these effects. In this work, the coupled characteristics of the tilt and thermal effects are studied. A coupled mathematical model to calculate the bearing properties of the pads is built. This model takes into consideration of tilt and thermal effects and is used to solve the flow problem by the finite difference method. The characteristics of the oil pad, including, the recess pressures, the load carrying capacity and the damping coefficients, are obtained and the tilt and thermal effects are analyzed. It is observed that the tilt has a tremendous impact on the bearing characteristics of the hydrostatic pad. The recess pressure, the load carrying capacity and the stiffness are reduced by 50% and the pressure distribution and the temperature distribution of the oil film also change significantly. When the pads work under a tilt operation, a larger land width is better for its bearing properties. It is also observed that the thermal effect is significant and cannot be ignored. 展开更多
关键词 thermo-hydrodynamic lubricant TILTING Reynolds equations constant flow compensation
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部