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作者论述了双转向滑环密封的一种空气动力式槽形和一种空气静力式槽形之间在结构设计和工作安全性方面的区别。研究结果表明，采用一种入流楔角约１５°而底部呈曲面形的对称槽形，可获得最大气膜刚度和工作安全性。
The authors discuss the difference between the structural design and the operational safety of an aerodynamic groove and an aerostatic groove for double steering slip ring seals. The results show that the maximum gas film stiffness and working safety can be obtained by using a symmetrical groove with a wedge angle of about 15 ° and a curved bottom.