CFD based investigation on the influence of multi-recess shape for the
design of hydrostatic thrust bearings
Abstract
Influences of six oil recesses shapes on the performance characteristics
of hydrostatic thrust bearings is discussed by using CFD methods. The
performance in terms of oil film pressure, temperature and load carrying
capacity is calculated. The recess pressure increases with its
circumference, the variation of maximum and the minimum recess pressure
in six recess shapes is 9%. The load carrying capacity (LCC) increases
with the recess circumference, and the maximum on equilateral triangle
recess while minimum pressure on circular. The LCC decreased 16.46%
when the rotation speed from 0 to 5000rpm. The recess shape have no
significant influence on the temperature distribution of oil film, but
the average temperature is inversely proportional to the width of middle
circle. Finally, the experiments were carried out to validating the CFD
methods.