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本文根据雷诺方程，编写了计算不同槽型气体端面密封端面压力分布的有限元程序。利用计算程序分别对三种不同槽型的密封面结构进行了优化，理论研究表明，斜底螺旋槽密封的性能最好，平底螺旋槽次之，但二者差别不大，径向槽密封的性能最差。为了验证理论计算的准确性，本文对平底螺旋槽密封进行了实验室试验，结果表明，用优化的结构参数设计的气体端面密封性能稳定可靠，理论计算和实验值比较接近。本文研究表明，用有限元法对气体端面密封进行数值计算，具有较高精度；通过优化设计可大大提高密封运行的稳定性和可靠性。
According to the Reynolds equation, a finite element program for calculating the pressure distribution on the seal face of gas in different troughs was written in this paper. The calculation results show that the performance of the inclined spiral groove is the best, followed by the flat spiral groove, but the difference between the two is not obvious. The radial groove sealed Worst performance. In order to verify the accuracy of the theoretical calculation, a laboratory test was carried out on the flat-bottomed spiral groove seal. The results show that the gas end-face seal designed with the optimized structural parameters is stable and reliable, and the theoretical calculation and experimental values are relatively close. The research in this paper shows that the finite element method is used to calculate the gas end face seal with high accuracy. The stability and reliability of the seal operation can be greatly improved through the optimized design.