Laser surface texturing (LST) provides a unique method for applying custom textures to metals, ceramics, and polymers. Etsion has presented a new type of mechanical seal by applying laser surface texturing onto the faces. According to Etsion, such a textured face seal (LST-MS) helps to reduce face friction and wear and can be used at higher sealed fluid pressures than that of a plain face seal. Such a new seal may be subjected to face deformation, and study on the effect of face deformation on sealing behavior of a LST-MS is important. In this paper, a finite element analysis was used to solve the Reynolds equation for liquid film pressure between the faces of a LST-MS. The deformation of two faces caused by sealed medium pressures and liquid film pressure was calculated for a LST-MS consisting of a stator ring with different constructions and/or constrictions. The effects of face deformation on sealing performances, such as leakage rate, film axial stiffness and the ratio of film stiffness to leakage of such a seal were studied. The stability of several seals with different constructions and constrictions was examined. It was suggested that selecting suitable constructions and/or constrictions will improve the stability of such a LST-MS.
- Nanotechnology Institute
Study on Deformation of a Laser Surface Textured Mechanical Seal
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Peng, X, Sheng, S, Li, J, Cai, Y, & Bai, S. "Study on Deformation of a Laser Surface Textured Mechanical Seal." Proceedings of the 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. Clear Water Bay, Kowloon, Hong Kong. June 3–5, 2008. pp. 79-84. ASME. https://doi.org/10.1115/MicroNano2008-70186
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