Accurate surface texture design is of great significance to improve the performances of gas bearings. In this article, the finite difference method and Newton’s method were combined to obtain the oil film pressure distribution, and the effect of rectangular groove on the lubrication performance was analyzed by changing representative texture parameters. The results show that the performances were more affected by the rectangular texture size compared with the distribution and the bottom shape of texture. The increasing of the surface texture number can only enhance the stability of the bearing. The bearing can provide 30% more bearing capacity by choosing larger size, radial arrangement and plane bottom. These results and analysis can provide technical reference for the bearing texture design.

准确的表面纹理设计对于提高气体轴承的性能具有重要意义。本文采用有限差分法和牛顿法相结合得到油膜压力分布，并通过改变代表性的织构参数来分析矩形槽对润滑性能的影响。结果表明，与纹理的分布和底部形状相比，矩形纹理大小对性能的影响更大。表面织构数的增加只能增强轴承的稳定性。通过选择更大的尺寸，径向布置和平面底部，轴承可以提供30％的承载能力。这些结果和分析可为轴承纹理设计提供技术参考。