In response to the problem of the sealing ring rotating with the shaft during the operation of the rotating Glyd ring,the structural modification design for the rotating Glyd ring was proposed by increasing the pre compression ratio of the O-ring and adding a pressure relief groove on the sealing ring.The finite element analysis software ANSYS was used to simulate and analyze the original and modified structures,and the contact stress distribution,radial force distribution,and frictional force magnitude of different parts of each structure were compared and analyzed.The results indicate that increasing the pre compression rate can ensure the sealing force of the rotating Glyd ring while making the friction force between the sealing ring and the shaft much smaller than the friction force between the sealing ring and the O-ring,effectively improving the problem of the rotating Glyd ring sealing ring rotating with the shaft.Adding a pressure relief groove to the sealing ring can theoretically improve the problem that the sealing ring rotates with the shaft.However,adding a pressure relief groove will reduce the sealing force at each contact interface,so as to increase the risk of sealing leakage.Moreover,adding a pressure relief groove will cause a sharp increase in the maximum stress-strain of the rotating ring,so as to increase the risk of stress failure of the rotating ring.