Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity
Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity
复制标题
边界条件和转台转速对静压油腔稳定性的影响
DOI：
10.1007/s11465-011-0222-2
复制
发表时间：
2011-08
期刊：
影响因子：
--
通讯作者：
申峰
中科院分区：
文献类型：
--
作者：
刘赵淼;张成印;申峰
对静压转台系统中摆线静压油腔的流动、承载和承载能力进行了数值模拟，考虑了转台转速从0到5 m/s和不同的边界条件。随着润滑油粘度的增加，涡流效应减弱，油腔的稳定性增强。但随着油腔进口速度、深度和进口半径的增大，油腔的涡流效应增强，油腔稳定性降低。随着油膜厚度的增加，油腔的承载能力减小。油腔压力沿着转盘运动的方向增大，由于转盘的旋转，油腔压力分布不均匀。随着转盘转速的增加，油腔流场中旋涡范围的位置和大小以及入口附近旋涡的强度逐渐减弱并远离入口。压力分布由旋涡的位置决定。当旋涡靠近壁面时，其所在位置的壁面压力增加。反之，壁面压力在涡心后先减小后增大。
The flow, bearing, and carrying capacity of the cycloidal hydrostatic oil cavity in hydrostatic turntable systems are numerically simulated, considering the rotation speeds of a turntable from 0 to 5 m/s and different boundary conditions. The vortex effect is weakened, and the stability of the oil cavity is enhanced with the increase in lubricant viscosity. However, the increase in inlet speed, depth, and inlet radius of the oil cavity causes the vortex effect to increase and the stability of oil cavity to reduce. With the increase in the oil film thickness, the carrying capacity of the oil cavity diminishes. The oil cavity pressure increases along the direction of the motion of the turntable; it is distributed unevenly because of the rotation of the turntable. With the increase in turntable speed, the location and size of the vortex scope in the oil cavity flow field and the strength of the vortex near the entrance gradually weaken and move away from the entry. The distribution of pressure is determined by the locations of the vortex. When the vortex is close to the wall, the wall pressure increases at its location. Otherwise, the wall pressure decreases first and then increases after the center of the vortex.
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影响因子：
0.9
作者：
M. Braun;M. Dzodzo
通讯作者：
M. Braun;M. Dzodzo
影响因子：
2.5
作者：
M. Braun;M. Dzodzo
通讯作者：
M. Braun;M. Dzodzo
影响因子：
2.4
作者：
K. Nakabayashi;T. Ichikawa;Y. Morinishi
通讯作者：
K. Nakabayashi;T. Ichikawa;Y. Morinishi
影响因子：
6.2
作者：
M. Dzodzo;M. Braun;R. Hendricks
通讯作者：
M. Dzodzo;M. Braun;R. Hendricks
影响因子：
3.5
作者：
PENG, XF;PETERSON, GP;WANG, BX
通讯作者：
WANG, BX